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Showing posts with label laptop. Show all posts
Showing posts with label laptop. Show all posts

Sunday, March 29, 2026

HP Pavilion x360 Convertible Model 14-cd0007TU Laptop/Tablet Repair, Lenovo Thinkpad T14 Gen 1 Laptop Repair, and More

HP Pavilion x360 Convertible Model 14-cd0007TU Laptop/Tablet Repair:
- I bought a cheap laptop recently as it was really cheap $40. Regardless of whether or not I was able to repair it or not I could always use it for parts. Ironicallly, it was also a better specification then my current laptop as well so if I could fix it it would be a nice upgrade or something I could sell at a profit
- the main issue is that it wouldn't boot. Just kept on looping with the Caps Lock flashing indicating a likely RAM failure issue. I reinserted the RAM but it still wouldn't work so swapped the RAM into an alternate slot which seemed to work
hp laptop 3 long 2 short
https://h30434.www3.hp.com/t5/Notebooks-Archive-Read-Only/No-screen-on-startup-3-long-beeps-2-short-beeps/td-p/6979452
https://community.spiceworks.com/t/what-is-solution-to-fix-3-long-2-short-beeps-no-display-hp-prodesk-400-g5-mt/804948
https://forums.tomsguide.com/threads/beeps-3-long-and-2-short-times-hp-probook.489201/
- after reseating the RAM the screen was still black when I tried to power it up so I plugged in a LCD monitor via HDMI which seemed to post an image. The problem with there was still no image on the laptop itself but I could see a backlight
- online it said the LCD is held in by heat so I stuck it next to the heater for a few minutes and pried the LCD away from the cover to check it as well as the connector cable. If I jiggled around the LCD connector cable it would work fine
hp Pavilion x360 Convertible Model 14-cd0007TU teardown
https://www.ifixit.com/Device/HP_Pavilion_x360_14-dw
https://www.ifixit.com/Device/HP_Pavilion_x360_14-dw1010wm
- they seemed to have screwed hole somewhere in the bottom plastic panel where it wasn't meant to be so had to push that back together
- there were some missing screws so I foraged around for some that I had left around
- there were some rubber feet which came off so I used some Loctite Kintsuglue which I had leftover from another job to make things look neater
https://www.henkel.com.au/press/press-releases-and-kits/2018-10-15-launch-of-loctite-kintsuglue-884410
https://www.bunnings.com.au/diy-advice/diy-skills/repairing/11-uses-for-loctite-kintsuglue
- as is the case for a lot of laptops being sold online by offices or by criminals this didn't come with a charger. I have old Dell/HP 7.4mm barrel connectors lying around but not the newer smaller diameters ones. Thankfully, there are converters out there to the newer narrower standard being used by HP
- the internals are strange since there's big rubber block in place in one corner. I thought there would be a lot converter cables out there to help slot in a SATA 7mm HDD/SSD but there aren't
hp Pavilion x360 Convertible Model 14-cd0007TU amazon sata ssd connector
https://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/Add-SATA-SSD-to-HP-pavilion-x360-convertible-cd0xxx-in/td-p/8977531
- repair cost for this job was $0 since I had all the spare parts lying around that I needed

Lenovo Thinkpad T14 Gen 1 Laptop Repair:
- bought this thing for $60 and was told this thing was completely not-working when there was a liquid spill and was quoted a repair cost of $280. In the US/West it's not really common for technicians to do component level repair on electronics and when I looked up the cost of a replacement mainboard it was ~$300 so this was obviously just a "switch out repair job"
- when opened up the the power switch was disconnected from the mainboard. If you plugged it back in, it would power on but just hang on a black screen with no indication that it would turn on
- I figured out if you leave it on long enough backlight would turn on, so assumed it was related to a CMOS/EEPROM issue as laptops often hang when they try to reset on modern laptops. This was confirmed when the laptop finally booted up to the Lenovo logo and BIOS
- it seems to work but the problem is this thing has "partial amnesia". If you leave it plugged into AC power, date and time settings are retained. If you remove it from AC power, date and time settings aren't retained even if CMOS battery is replaced and battery is charged to full power. This means something along RTC circuit is dead. What doesn't make sense is that there's normally an error that says that on startup if system detects that problem with RTC but this doesn't mention that at all
https://en.wikipedia.org/wiki/Amnesia
https://en.wikipedia.org/wiki/Real-time_clock
thinkpad 271 error
https://www.reddit.com/r/Lenovo/comments/1dxijs0/error_0271_check_date_and_time_settings_cannot/
https://www.reddit.com/r/thinkpad/comments/1akzw06/error_0271_set_time_after_drained_battery/
thinkpad 251 error
https://www.reddit.com/r/thinkpad/comments/1dndap1/need_help_with_my_lenovo_thinkpad_carbon_x1_6th/
https://www.reddit.com/r/thinkpad/comments/1kquyv6/flashing_lights_during_failed_boot_up/
- I opened the thing up and noticed water stains/oxidisation/rust already forming down the left hand side of the board which I cleaned up. I traced along the circuit between BIOS, RTC, CMOS battery, etc... and I found a chip that blew up (it looks like it has half melted which makes it really difficult to identify and remove) with a label next to it of USB303. I looked around and it seems to be related to power management which makes sense (as the laptop does other strange things like power on automatically when you plug it in but not having this setting turned on inside BIOS). I suspect replacing it will fix the problem if I can find a replacement chip which will likely lead to a total repair repair cost of less then $10. The problem is that I can't identify it or find a suitable donor board at the moment?
what does usb303 chip do on lenovo thinkpad t14s gen 1
Based on common ThinkPad schematics and board component labeling, the USB303 component on a Lenovo ThinkPad T14s Gen 1 typically refers to a USB 3.0/3.2 Gen 1 ESD Protection Diode Array or a similar protection component located near the side USB ports.
iFixit
iFixit
 +1
Its primary functions include:
Electrostatic Discharge (ESD) Protection: It protects the sensitive motherboard circuitry from static electricity shocks that can occur when plugging USB devices into the USB-A ports.
Signal Integrity/Filtering: It helps filter noise and maintain signal integrity for data transfer speeds up to 5 Gbps (USB 3.2 Gen 1) on the side ports.
Lenovo
Lenovo
 +2
The T14s Gen 1 features USB 3.2 Gen 1 Type-A ports on both sides (one is "Always On" for charging devices even when the laptop is off). If this component fails, it often manifests as a single USB port failing while others continue to work.
Lenovo
Lenovo
 +2
https://www.ifixit.com/Device/Lenovo_ThinkPad_T14s_Gen_1
Lenovo T series laptops (ThinkPad) T14 Gen 1 (type 20S0, 20S1) Laptop (ThinkPad), Motherboard, USB and Power Board BoardView files and Schematic diagram
https://laptop-schematics.com/view/13890/
what does us303 do on thinkpad t14 gen1 mainboard
https://www.reddit.com/r/thinkpad/comments/uqlyto/thinkpad_t14_motherboard_swap/
https://www.reddit.com/r/thinkpad/comments/103na6b/what_is_this_extra_slot_on_my_t14_thinkpad_gen_1/
https://www.reddit.com/r/thinkpad/comments/pc4ad0/help_w_identifying_mainboard_component_of_t14_gen/
T14 Gen 1, T15 Gen 1, P14s Gen 1, and P15s Gen 1 User Guide
https://download.lenovo.com/pccbbs/mobiles_pdf/t14_t15_p14s_p15s_ug_en.pdf
T14 Gen 1 and P14s Gen 1 Hardware Maintenance Manual
https://download.lenovo.com/pccbbs/mobiles_pdf/t14_gen1_p14s_gen1_hmm_en.pdf
ThinkPad T14 Gen 1 (Intel)
https://psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_T14_Gen_1_Intel/ThinkPad_T14_Gen_1_Intel_Spec.pdf
- I suspect you can bridge it disable the circuit completely as a temporary fix. The problem is that my hobby soldering iron doesn't reach high enough temperatures to get rid of the offending chip (and this is only a hobby for me rather then a job)? This half melted chip seems to be welded to the PCB mainboard now? Whatever caused the original short in the first place seemed to have done a really good job?
can you bridge a noise filter diode to fix it
https://www.reddit.com/r/diyelectronics/comments/u0g7x6/is_it_safe_to_bypass_mains_filter_on_washing/
- the frustrating thing with repairing laptops is the size, specialist equipment that you sometimes need to purchase to get going, availability of parts, lack of documentation, etc... If it's an easier repair it's definitely worth the risk to see if you can repair it yourself
https://dtbnguyen.blogspot.com/2025/12/computerelectronics-data-drive-recovery.html
Broken USB Flash Drive Smoked - Repair and Data Recovery
https://www.youtube.com/watch?v=YA7GaNLbK5Q
Whirlpool Dryer Motherboard Repair
https://www.youtube.com/watch?v=pLbQUBjClsc
Crazy Repair on this expensive device. 24 broken traces. Anritsu Spectrum Analyzer MS2721B
https://www.youtube.com/watch?v=vmjAIXx48AA
PS5 Disaster repair - What have they done ?
https://www.youtube.com/watch?v=vRD3ZMV2t2c
Received This Insane RTX 3090 for Repair and Totally Lost My Mind!
https://www.youtube.com/watch?v=-ZbMQ_zPICQ
A common problem with Asus laptops
https://www.youtube.com/watch?v=R9yYi-7JddQ
https://www.youtube.com/@NorthridgeFix
https://www.youtube.com/@NorthridgeFix/videos
Nvidia H200 NVL repair (does not power on)
https://www.youtube.com/watch?v=YQbbBSp5jis
https://www.youtube.com/@northwestrepair/videos
https://www.youtube.com/@rossmanngroup/videos
https://www.youtube.com/@JoeyDoesTech/videos
https://www.youtube.com/@dellpartspeople/videos
https://www.youtube.com/@electronicsrepairschool/videos
https://www.youtube.com/@blackhorserepairs/videos
- if you were interested in this post you'll probably be interested in my other repair blog posts:
https://dtbnguyen.blogspot.com/2026/01/winter-jacket-purchaserepairdesign.html
https://dtbnguyen.blogspot.com/2025/12/computerelectronics-data-drive-recovery.html
https://dtbnguyen.blogspot.com/2025/12/where-are-jobs-in-economy-random-stuff.html
https://dtbnguyen.blogspot.com/2025/09/rat-backgroundresearch-professional-rat.html
https://dtbnguyen.blogspot.com/2025/01/3d-printing-background-random-stuff-and.html
https://dtbnguyen.blogspot.com/2024/03/tpe-sd2000i-inverter-petrol-power.html
https://dtbnguyen.blogspot.com/2024/03/fixing-cheap-hurricane-gen850-and.html
https://dtbnguyen.blogspot.com/2024/03/repairing-troy-bilt-tb525ec-whipper.html
https://dtbnguyen.blogspot.com/2024/02/repairing-and-maintaining-victa-2.html
https://dtbnguyen.blogspot.com/2019/08/servicingfixing-my-briggs-and-stratton.html
https://dtbnguyen.blogspot.com/2023/10/vacuum-filter-troublesplanned.html
https://dtbnguyen.blogspot.com/2023/09/conversion-from-physical-to-virtual_10.html
https://dtbnguyen.blogspot.com/2023/07/international-manufacturing-youtube.html
https://dtbnguyen.blogspot.com/2023/06/youtube-car-repair-channels-random.html
https://dtbnguyen.blogspot.com/2021/11/recyclingunlockinghacking-devices-for.html
https://dtbnguyen.blogspot.com/2019/11/a-sea-of-fakery-random-stuff-and-more.html
https://dtbnguyen.blogspot.com/2018/04/hp-4520s-laptop-teardown-random-stuff.html
https://dtbnguyen.blogspot.com/2011/04/apple-ibook-g4-logicboard-fixes.html
https://dtbnguyen.blogspot.com/2010/10/asus-1005p-disassembly.html
https://dtbnguyen.blogspot.com/2010/07/replacing-lcd-on-toshiba-nb200.html
https://dtbnguyen.blogspot.com/2013/02/laptop-thermal-design-convergence-and.html
https://dtbnguyen.blogspot.com/2012/05/fujitsu-stylistic-st4120-recovery.html
https://dtbnguyen.blogspot.com/2011/10/nvidia-laptop-graphics-chip-repair.html
https://dtbnguyen.blogspot.com/2013/03/laptop-hacking-and-hardware-workarounds.html
https://dtbnguyen.blogspot.com/2015/08/apple-icloud-device-locking-and-general.html
https://dtbnguyen.blogspot.com/2013/03/repairing-laptop-power-bricks.html
https://dtbnguyen.blogspot.com/2011/08/unlocking-your-phonemodem.html
https://dtbnguyen.blogspot.com/2015/08/apple-icloud-device-locking-and-general.html
https://dtbnguyen.blogspot.com/2015/07/ableton-and-ableton-push-hacking.html
https://dtbnguyen.blogspot.com/2012/09/windows-and-android-arent-that_5901.html
https://dtbnguyen.blogspot.com/2012/08/funky-firmware.html
https://dtbnguyen.blogspot.com/2012/07/if-only-reading-were-easier.html
https://dtbnguyen.blogspot.com/2011/11/playing-with-android.html
https://dtbnguyen.blogspot.com/2015/06/repairing-musical-instrumentselectrical.html
https://dtbnguyen.blogspot.com/2015/06/custom-midi-hardware-and-software.html
https://dtbnguyen.blogspot.com/2012/12/network-traffic-analysis-laptop-power.html
https://dtbnguyen.blogspot.com/2013/02/laptop-thermal-design-convergence-and.html
https://dtbnguyen.blogspot.com/2012/10/more-security-oscilloscope-and-wireless_6750.html
https://dtbnguyen.blogspot.com/2011/11/hp-pavilion-dv2000-laptop-troubles.html
https://dtbnguyen.blogspot.com/2011/03/eeepc-recovery-without-recovery.html
https://dtbnguyen.blogspot.com/2018/11/lost-dell-recovery-disc-youtube.html

Random Stuff:
- as usual thanks to all of the individuals and groups who purchase and use my goods and services
http://sites.google.com/site/dtbnguyen/
http://dtbnguyen.blogspot.com.au/
- latest in science and technology
https://gitlab.com/l-hex/bitchute-cli
https://gitlab.com/l-hex/bitchute-cli/-/blob/master/bitchute.py
https://www.bbc.com/future/article/20260216-the-unseen-force-turning-water-to-salt
https://www.bbc.com/future/article/20260220-how-ultra-processed-foods-influence-our-gut-microbiome
https://www.news.com.au/technology/innovation/humanoid-robot-arrested-by-police-after-confronting-elderly-woman-in-macau/news-story/5b7ce84081000e00e5c159c4cb25d975
https://www.theguardian.com/technology/2014/jun/29/facebook-users-emotions-news-feeds
https://www.forbes.com/sites/kashmirhill/2014/06/28/facebook-manipulated-689003-users-emotions-for-science/?sh=2237883d197c
https://www.theatlantic.com/technology/archive/2014/06/everything-we-know-about-facebooks-secret-mood-manipulation-experiment/373648/
https://www.cancervic.org.au/about-cancer/prevent-detect-cancer/screening/bowel-screening/reorder-kit
https://ncsr.gov.au/bowel-screening/reorder-kit/ccv
- latest in finance and politics
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https://www.smh.com.au/national/nsw/every-public-student-granted-access-to-gifted-education-programs-20260226-p5o5rb.html
https://www.afr.com/politics/overriding-nimby-councils-would-help-build-1m-more-homes-in-sydney-20260224-p5o4vt
https://www.news.com.au/finance/money/tax/softened-up-costello-warns-aussies-on-tax/news-story/32fc853d012c7bc89a5ba0437bfa895b
https://www.news.com.au/finance/money/tax/albanese-deflects-questions-on-capital-gains-tax-on-eve-of-senate-inquiry/news-story/40714b33a3eab7627966ffe96138cbf2
https://www.afr.com/markets/equity-markets/harvard-led-study-says-ai-can-predict-71pc-of-active-fund-trades-20260225-p5o574
https://www.realcommercial.com.au/news/sydney-to-newcastle-high-speed-rail-expected-to-supercharge-property-market/
https://www.rt.com/russia/633301-russia-oil-reserves-sixty-years/
https://www.news.com.au/finance/work/at-work/unions-push-for-five-weeks-annual-leave-out-of-touch-with-reality-industry-group-claims/news-story/4ab6e10dabd815db8be39ba374a95bf1
https://www.theguardian.com/australia-news/2026/mar/09/outsourced-call-centre-sweeps-centrelink-customer-privacy-breaches-under-the-rug-staff-allege-ntwnfb
https://www.theguardian.com/australia-news/2026/feb/22/ndis-call-centre-workers-serco-ndia
https://www.theguardian.com/australia-news/2026/jan/14/australia-outsourced-call-centres-staff-incentives
https://www.theguardian.com/australia-news/2026/jan/25/ndis-outsourced-call-centre-pretend-government-workers
https://www.theguardian.com/commentisfree/2026/mar/11/plant-based-foods-honest-meat-cow-muscle-eu-rules-ban-veggie
https://www.theguardian.com/environment/2026/mar/11/australian-governments-subsidising-fossil-fuel-use-by-more-than-30000-a-minute-analysis-finds
https://www.theguardian.com/world/2026/mar/12/mexico-city-neighborhoods-inequality
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https://www.rt.com/russia/633804-russia-exit-european-gas-putin/
https://nationalinterest.org/blog/buzz/pakistans-jf-17-thunder-30-million-fighter-jet-rewriting-arms-market-bw-012926
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Random Quotes:
- According to Baran's categories, "Actual economic surplus" is "the difference between society's actual current output and its actual current consumption," and hence is equal to current savings or accumulation. Potential economic surplus," in contrast, is "the difference between that output that could be produced in a given natural and technical environment with the help of employable productive resources, and what might be regarded as essential consumption." Baran also introduced the concept of "planned surplus"—a category that could only be operationalized in a rationally planned socialist society. This was defined as "the difference between society's 'optimum' output available in a historically given natural and technological environment under conditions of planned 'optimal' utilization of all available productive resources, and some chosen 'optimal' volume of consumption."[7]
Baran used the surplus concept to analyze underdeveloped economies in his The Political Economy of Growth. Baran with Paul M. Sweezy applied the surplus concept to the contemporary US economy in Monopoly Capital.
Notable among Baran's students was Richard D. Wolff[8].
https://en.wikipedia.org/wiki/Paul_A._Baran
- In the book's concluding chapters Baran and Sweezy highlight the growing disparity between the productive potential of US society and the waste and misuse of that potential. They point to racial disparities and the social and cultural costs of the current structure of the political economic system where real basic needs for human development such as education and housing are not met while a belligerent militarism and cultural traits associated today with "consumerism" are cultivated with great effort in the interests of profit. They see the primary weaknesses of the system to be in the imperial realm, as countries in the periphery revolt against the domination of monopoly capital over their economies, a revolt that is increasingly mirrored in the resistance of peoples of color, making up a critical part of the working class, within the United States itself.
https://en.wikipedia.org/wiki/Monopoly_Capital
- Online PC reseller MSY Technology was found to have abandoned an ACCC-approved set of terms and conditions as early as 2013, court documents showed.
Last week, MSY was ordered to pay $750,000 in fines to the ACCC for misrepresenting consumers' rights on remedies for faulty products, six years after getting fined $203,500 for misleading warranty notices.
In response to a letter from ACCC in 2010 about customer complaints, MSY and its lawyers worked together with the regulator to draft amended terms and conditions.
Court documents show that MSY did publish the amended terms and conditions, but these were removed about January 2013.
"MSY says, and the ACCC accepts, that its representative acted without the knowledge or approval of its senior management in replacing the [ACCC-approved] amended terms and conditions with [MSY's current] terms and conditions," the court document read.
The offending terms and conditions indicated the limited rights of MSY customers regarding returns and repairs, including the seven-day warranty period and the administrative fee for repairs not covered by the warranty period.
https://www.crn.com.au/news/msy-technology-bust-followed-three-years-of-non-compliance-with-accc-476448
- Scientists link a common virus to aggressive skin cancer for first time.
In a groundbreaking discovery, scientists have found that a common strain of human papillomavirus (HPV) can directly drive the growth of cutaneous squamous cell carcinoma (cSCC) – one of the most common cancers worldwide.
In a detailed genetic analysis of a 34-year-old woman with recurring, treatment-resistant cSCC, researchers discovered that beta-HPV had integrated itself into the DNA of her tumor, producing viral proteins that helped the cancer grow. This is the first time beta-HPV has been shown to do this.
The woman's immune system, weakened by a rare genetic disorder, was unable to clear the virus. But after receiving a bone marrow stem cell transplant, her immune function was restored and her aggressive cancer, along with other HPV-related symptoms, disappeared.
This discovery shows that in rare cases, normally harmless viruses can become deadly in immunocompromised individuals and that personalized, immune-based treatments may be the key to stopping them.
It's a promising step toward better cancer diagnostics and targeted therapies – especially for people whose immune systems don't work like everyone else's.
Read the study:
Ye, Peiying, et al. "Resolution of Squamous‑Cell Carcinoma by Restoring T‑Cell Receptor Signaling." The New England Journal of Medicine, vol. 393, no. 5, 31 July 2025
https://www.facebook.com/fromquarktoquasars
- German banking crisis of 1931 and British crisis
The financial crisis escalated out of control in mid-1931, starting with the collapse of the Credit Anstalt in Vienna in May.[76][77] This put heavy pressure on Germany, which was already in political turmoil. With the rise in violence of Nazi and communist movements, as well as investor nervousness at harsh government financial policies.[78] Investors withdrew their short-term money from Germany, as confidence spiraled downward. The Reichsbank lost 150 million marks in the first week of June, 540 million in the second, and 150 million in two days, June 19–20. Collapse was at hand. U.S. President Herbert Hoover called for a moratorium on Payment of war reparations. This angered Paris, which depended on a steady flow of German payments, but it slowed the crisis down, and the moratorium was agreed to in July 1931. An International conference in London later in July produced no agreements but on August 19 a standstill agreement froze Germany's foreign liabilities for six months. Germany received emergency funding from private banks in New York as well as the Bank of International Settlements and the Bank of England. The funding only slowed the process. Industrial failures began in Germany, a major bank closed in July and a two-day holiday for all German banks was declared. Business failures were more frequent in July, and spread to Romania and Hungary. The crisis continued to get worse in Germany, bringing political upheaval that finally led to the coming to power of Hitler's Nazi regime in January 1933.[79]
The world financial crisis now began to overwhelm Britain; investors across the world started withdrawing their gold from London at the rate of £2.5 million per day.[80] Credits of £25 million each from the Bank of France and the Federal Reserve Bank of New York and an issue of £15 million fiduciary note slowed, but did not reverse the British crisis. The financial crisis now caused a major political crisis in Britain in August 1931. With deficits mounting, the bankers demanded a balanced budget; the divided cabinet of Prime Minister Ramsay MacDonald's Labour government agreed; it proposed to raise taxes, cut spending, and most controversially, to cut unemployment benefits 20%. The attack on welfare was unacceptable to the Labour movement. MacDonald wanted to resign, but King George V insisted he remain and form an all-party coalition "National Government". The Conservative and Liberals parties signed on, along with a small cadre of Labour, but the vast majority of Labour leaders denounced MacDonald as a traitor for leading the new government. Britain went off the gold standard, and suffered relatively less than other major countries in the Great Depression. In the 1931 British election, the Labour Party was virtually destroyed, leaving MacDonald as Prime Minister for a largely Conservative coalition.[81][82]
https://en.wikipedia.org/wiki/Great_Depression
- Etymology
The term Israelite is the English name for the descendants of the biblical patriarch Jacob in ancient times, which is derived from the Greek Ἰσραηλῖται,[33] which was used to translate the Biblical Hebrew term b'nei yisrael, יִשְׂרָאֵל as either "sons of Israel" or "children of Israel".[34]
The name Israel first appears in the Hebrew Bible in Genesis 32:29. It refers to the renaming of Jacob, who, according to the Bible, wrestled with an angel, who gave him a blessing and renamed him Israel because he had "striven with God and with men, and have prevailed". The Hebrew Bible etymologizes the name as from yisra "to prevail over" or "to struggle/wrestle with", and El (God).[35][36] However, modern scholarship interprets El as the subject, "El rules/struggles",[37][38][39] from sarar (שָׂרַר) 'to rule'[40] (cognate with sar (שַׂר) 'ruler',[41] Akkadian šarru 'ruler, king'[42]), which is likely cognate with the similar root sara (שׂרה) "fought, strove, contended".[43][44]
The name Israel first appears in non-biblical sources c. 1209 BCE, in an inscription of the Egyptian pharaoh Merneptah. The inscription is very brief and says simply: "Israel is laid waste and his seed is not" (see below). The inscription refers to a people, not to an individual or a nation-state.[45]
Three Egyptologists have suggested that the name 'Israel' appears in a topographical relief that either dates to the period of the Nineteenth Dynasty (perhaps during the reign of Ramses II) or even earlier during the Eighteenth Dynasty.[46] This reading remains controversial.[47][48]
https://en.wikipedia.org/wiki/Israelites
- Homework, Harvard and high expectations
We've been conducting research with young Asian Australians, aged between 16 and 30, for the last eight years and this tension between resentment, understanding and acceptance marks the relationships that many children of Asian migrants have with their parents. The Asian tiger parenting stereotype, according to our research, is real: all our research participants, more than 60 in total, said that their parents had extremely high expectations of them. Almost all spent hundreds of hours completing extra homework tasks set by their parents and attending private tutoring centres, often multiple times a week throughout their schooling years. Many echoed Liu's sentiments when he described the "true purpose of childhood: getting into Harvard."
Many of our interviewees expressed frustration at their parents' narrow focus on educational achievement, to the exclusion of all else. Rebecca, a recent university graduate, was scathing of her parents' "obsession" with education. Her failure to achieve a place at a top selective school was a source of "shame" for the whole family, she said. Others reflected on their enormous study loads in the lead-up to the selective schools admissions test, some saying they worked harder when they were only ten years old than at any other time in their lives.
Linda said that her adolescent depression was largely caused by her parents' unrealistic expectations, and to boot, "culturally people from China don't really know what depression is". This meant it was almost impossible for her to talk with her parents about what she was going through.
Others were resentful at not having the freedom to choose their own subjects or university courses. They felt forced into "safe" or "prestigious" fields such as medicine, law or engineering, having their passion for the arts and other "useless" subjects crushed. Trades and services were not even on the radar.
https://www.theguardian.com/lifeandstyle/2022/jul/03/resentment-acceptance-gratitude-the-paradox-facing-australian-children-of-tiger-parents
- 1.6 kilowatts of power was beamed over a kilometer using a ten gigahertz microwave beam (3,280 feet) as part of the Safe and Continuous Power Beaming - Microwave (SCOPE-M) project. At MIT in Massachusetts, a second SCOPE-M project was set up at the Haystack Ultra Wideband Satellite Imaging Radar (HUSIR) transmitter.
The ten gigahertz frequency was chosen for its ability to beam through heavy rain with a power loss of less than five percent and falls within international standards of safety for birds, animals, and humans that may be present. The Maryland tests saw the system operating with 60 percent efficiency, and though they had a lower peak power, the average power level was higher, resulting in more energy being delivered.
"Although SCOPE-M was a terrestrial power beaming link, it was a good proof of concept for a space power beaming link. The main benefit of space to Earth power beaming for the DOD is to mitigate the reliance on the fuel supply for troops, which can be vulnerable to attack," said Brian Tierney, SCOPE-M electronics engineer.
https://www.tweaktown.com/news/85777/the-navy-just-beamed-1-6-kw-of-power-wirelessly-over-kilometer/index.html

Thursday, April 26, 2018

HP 4520s Laptop Teardown, Random Stuff, and More

- I obviously do laptop support/repair from time to time:
- this post will cover a 'teardown' of a HP 4520s and replacement of the CMOS battery. This is one of the 'lesser designs' that I've come across when it comes to repairs, upgrades, etc... so I thought I'd document it for others. There are teardowns available online but it never reallly compares to having to do deal with the real thing. As an aside, always get teardowns of possible prior to dealing with laptops. My experience is that even with experience with a particular model/class of laptop it's still possible that some difficulties may be experienced
4520s teardown
- basically bottom panel (holds most of the hardware including the keyboard, hard drive, RAM, etc... except the LCD panel) is composed of three parts. Part that holds power button, keyboard, and mousepad component. Five screws to remove 'top/power button panel' (three under battery and two at back under two rubber pads), two screws up top which hold keyboard in place, three screws which hold bottom/track pad in place (bottom pad needs to be slid to the right as well). Two ribbon cables to connect keyboard and trackpad to mainboard
- the 4xxx class of computers are superficially similar/compatible. The CMOS battery on the 4520s lies beneath a plastic structure which must be detacted/lifted from the existing body for it to be replaced. This doesn't seem to be documented on other members of the 4xxx class of laptop
How to remove or replace a HP Probook 4320s CMOS Battery
- if you've ever wanted to repair a laptop power brick you've probably wondered how to open them non-destructively. Most people used to 'crack them open' using a knife and hammer. Online videos I've come lately indicate a 'better method'. Petroleum based products such as degreasers, solvents, petrol etc... can be used to dissolve the glue that holds 'power bricks' together (people online use syringes, cotton buds, etc... but you can get away with simply pouring it down the relevant crack). Then you can literally use your hands to open the power brick. Thereafter, it's a case of tracking down the source of the problem and dealing with it. Obviously, this class of electronics is difficult to find parts for and if you can find spare parts they often cost so much that they make the repair uneconomical. That's why I sometimes keep old/broken equipment around simply to make up for this possibility
How To Open A Laptop Adapter - laptop adapter disassemble trick
- if you've ever had to deal with laptop repair on a long term basis you've dealt with the 'missing panel' problem from time to time. Of late, I've been thinking about 3D printing, putty style materials (Selley's Knead It), melting plastic (home based recycling operation), etc...
- startup problems can be difficult to track down sometimes because of the design of some laptops. Discharging power from all sources can sometimes work with this particular class/model of laptop
How to fix a HP laptop that does not turn on but instead blinks (flashes) an amber orange light
How to repair HP Probook Laptop Won't Turn ON
HP 4530s Troubleshooting (laptop won't start)
- as it currently stands there are limited mechanisms to achieve a BIOS password reset in the case of lost, hacked, stolen, vandalised, etc... laptops
bypass bios password 4520s

Random Stuff:
- as usual thanks to all of the individuals and groups who purchase and use my goods and services
- feels like LinkedIn is imposing a 'grey listing' type mechanism at play for some strange reason? It feels possible to bypass auth wall if you follow a particular protocol sometimes. Will dig deeper into this at some stage down the line
- latest in science and technology
Why did Borland fail?
- latest in finance and politics
- latest in defense and intelligence
- latest in animal news
- latest in music and entertainment

Random Quotes:
- Veg-focused dining isn't just an inner-city trend. At Cornersmith, students travel far and wide to attend its tofu and miso classes. Diners come from interstate to stock up at Smith & Deli and one regular commutes four hours (twice a week) to get her vegan food fix. Kenney's Plantminded company, will serve hospitals, schools, universities and lower-income neighbourhoods with products like frozen pizza.

For Kenney, plant-based dining keeps gaining momentum. "We get approached a half dozen times a day about [opening] new places," he says. "The phone never rang three years ago."

The growing innovation in plant-based foods, from pea milk (which Martinez is excited about) to San Francisco start-up Just producing convincing vegan "eggs" from mung beans, is helping spur interest.

But this isn't just a fad with an expiration date. It's amplifying an idea that Dan Barber explores in The Third Plate, from 2014. In his influential book, he imagines a carrot steak as the headliner of a dish, instead of a "hulking piece of protein". He was forecasting the way we would eat – and how we'd need to eat. The environmental, agricultural, health and economical reasons for sidelining meat are not going away – but will only become more undeniable with time.

And vegan cuisine is accessible to everyone: "It's the most widely friendly food to every group," he says, from pork-avoiding Muslims to the lactose-intolerant. "Unless you're allergic to vegetables, there's no reason to stay away."
- Over the years, there have been a handful of small arms detection technologies tested and incorporated into helicopters; one of them, which first emerged as something the Army was evaluating in 2010 is called Ground Fire Acquisition System, or GFAS.

This system, integrated onto Apache Attack helicopters, uses infrared sensors to ID a “muzzle flash” or heat signature from an enemy weapon. The location of enemy fire could then be determined by a gateway processor on board the helicopter able to quickly geolocate the attack.

While Klager said there are, without question, similarities between air-combat HFD technologies and those emerging for ground combat vehicles, he did point to some distinct differences.

“From ground to ground, you have a lot more moving objects,” he said.

Potential integration between HFD and Active Protection Systems is also part of the calculus, Klager explained. APS technology, now being assessed on Army Abrams tanks, Bradleys and Strykers, uses sensors, fire control technology and interceptors to ID and knock out incoming RPGs and ATGMs, among other things. While APS, in concept and application, involves threats larger or more substantial than things like small arms fire, there is great combat utility in synching APS to HFD.
- DARPA director Steven Walker said the top-secret US arms research agency is focusing on breakthroughs that can be configured as part of new weapons systems, while calculating out how much these weapons will cost.

“Things are moving,” Walker was quoted as saying. “This is becoming not just [a science and technology] thing. The services are interested in moving forward with real capabilities.”

But Walker also says US R&D on hypersonic weapons isn’t keeping pace with Russia and China. He noted that DARPA is pushing to test a hypersonic missile before 2020 but the agency needs more resources.

“If you look at some of our peer competitors, China being one, the number of facilities that they’ve built to do hypersonics… surpasses the number we have in this country. It’s quickly surpassing it by 2 or 3 times. It is very clear that China has made this one of their national priorities. We need to do the same,” Walker told a press briefing.

The DARPA director declined to comment on Putin’s claim that Russia has a hypersonic missile that can beat enemy antimissile systems.
- Drones, drones and more drones.

The Pentagon wants to purchase 3,447 new drones in 2019. That's quadruple the number that it requested Congress to fund in 2018, according to an analysis of the Fiscal Year 2019 Department of Defense budget request.

The Center for the Study of the Drone at Bard College, which conducted the analysis, estimates that the military is asking for $9.4 billion for drone-related programs, or about a 25 percent increase over last year's $7.5 billion request for 807 drones. About $6 billion would go for procurement of unmanned aircraft, $982 million for naval drones and $429 million for robotic ground vehicles, with the remainder allocated to developing counterdrone defenses as well as advanced concepts like swarm drones and teaming of manned and unmanned craft.

The biggest line item for drone funding is $1.4 billion for the Air Force's MQ-9 Reaper, star player in America's drone wars. Yet if Congress passes this budget, the Navy will actually get the largest share of the $9.4 billion pie, with a $3.8 billion slice for the Navy/Marines, followed by the Air Force, Army and Department of Defense.

One reason for the Navy's bonanza is the MQ-25 Stingray carrier-based drone tanker aircraft. The Stingray's prospective budget more than doubled, from $224 million to $756 million to develop two MQ-25 prototypes.
- To date, SpaceX has successfully landed Falcon 9 first stages 23 times and re-flown 11 of them. Falcon 9 first stages perform engine maneuvers in space that send them back to Earth, where they can land on an offshore drone ship or landing pads near their launch sites. They use grid-like fins for stability during re-entry, perform engine burns to slow down and carry landing legs that fold out just before touchdown.

The company has also reused two of its uncrewed Dragon cargo ships to deliver NASA cargo to the International Space Station (one of them is in orbit right now) and is actively trying to capture the payload fairings — or nose cones — that shroud and protect satellites and other payloads during launch. In fact, SpaceX will try to recover the payload fairings again today (April 16) when it launches a Falcon 9 carrying NASA's next exoplanet-hunting space telescope, the Transiting Exoplanet Survey Satellite. You can watch that launch live on Space.com at 6:30 p.m. EDT (2230 GMT) today.

Musk did not reveal a timetable for the "giant party balloon" landing test or details on how it works, but he did say that a sturdy balloon has a good shape to withstand the stresses a rocket stage endures during its supersonic descent back to Earth.

 A giant balloon is "great for creating a giant object that retains its shape across all Mach regimes & drops ballistic coefficient by 2 orders of magnitude," Musk wrote. 

Musk also said that SpaceX already brings its Falcon 9 upper stages back to Earth. They are intentionally disposed of in the Pacific Ocean so they don't become space junk.

"We already do targeted retro burn to a specific point in Pacific [with] no islands or ships, so [the] upper stage doesn't become a dead satellite," Musk wrote on Twitter. "Need to retarget closer to shore & position catcher ship like Mr. Steven." 

Mr. Steven is a ship equipped with a net and giant metal arms to catch falling Falcon 9 payload fairings. Musk has called it a "catcher's mitt" in boat form.

SpaceX's use of a giant balloon for a rocket won't be the first time a company or space agency has attempted to use an inflatable system for re-entry. NASA has conducted several experiments using inflatable "flying saucer"-shaped inflatable heat shields for Mars landings. And in 2012, the private spaceflight company Armadillo Aerospace launched an inflatable balloon parachute, or "ballute," as a part of a re-entry technology test. 
- TESLA has been forced to suspend production of its Model 3 sedan — a car that is considered vital to the company’s future but has been plagued by production delays.

The apparent problem with Tesla’s Model 3 assembly line? Too many robots, according to the man behind the wheel of the company.

Tesla boss Elon Musk took to Twitter to admit his big mistake as the company struggles to fend off critics.

“Yes, excessive automation at Tesla was a mistake,” he tweeted on the weekend. “To be precise, my mistake. Humans are underrated.”

Mr Musk has been a vocal advocate of the idea of universal basic income, claiming automation and robots are set to wipe out all sorts of traditional jobs. However Tesla’s own attempts to heavily rely on automation has apparently caused problems.

“We had this crazy, complex network of conveyor belts,” Mr Musk added in an interview with CBS on the weekend. “And it was not working, so we got rid of that whole thing.”

His concession came as a report published by Reveal in conjunction with The Center for Investigative Reporting claimed that in the company’s eagerness to ramp up production of its Model 3, Tesla quietly concealed the true number of workplace injuries at its Californian assembly plant.

Injuries were reported by workers to supervisors or managers, but the complaints were reportedly dismissed and not passed on to regulators as is required by law.

In a statement on the company’s blog Monday titled “A Not So Revealing Story,” Tesla denounced the story calling Reveal an “extremist organisation” which produced “an article that paints a completely false picture of Tesla.”

On Tuesday morning, it was reported that for the second time this year Tesla has been forced to shut down production of its Model 3 vehicle, the company’s more affordable offering.

The announcement of the four-to-five-day production pause came without warning, according to Tesla employees who spoke with BuzzFeed News.

A Tesla spokesperson said the production halt will be “used to improve automation and systematically address bottlenecks in order to increase production rates.”

More than 400,000 people have pre-ordered one of the Model 3 vehicles but their wait continues.

Automated Government and Getting Country Issues via AI/ML, What is Wabbing?, and More

Automated Government and Getting Country Issues via AI/ML: - I've been researching the possibility of Semi to Fully Automated gover...