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Hello everyone, I've been trying to repair my MSI gs66-stealth 12ugs laptop, It broke few days after i updated the BIOS however it could be anything since the motherboard is in poor shape and recently resoldered new keyboard connector. When i power it up the fans start spinning the cpu starts heating, no picture, keyboard doesnt light up the USB also doesnt work. When i push the powerbutton longer laptop restarts. While powered laptop draws around 1.2A. I've already tried reflashing BIOS. It didn't make any difference, i do not know if i have done it correctly. I asked chatgpt to merge a bios...

hi my laptop no display
i need help
ideapad 3 - 15ARE05 TYPE 81W4
SN : PF2CZBES...

broken chager port but I changed the port but device is not chargin and sort circuite

Currently working on an A2159 MacBook Pro with an issue I haven’t seen before. The entire keyboard is non functional while the trackpad works normally and is fully responsive. I also noticed the keyboard backlight is not working at all. I already replaced the full palmrest / keyboard assembly along with the trackpad flex cable, but the issue remains exactly the same.

Any possible solutions for this?

T480 NM-b501

i use this laptop for my server and sadly both the usb c port is fried and i succesfully removed both of the type c. my idea is to inject 20v to VINT20_IN but i only have a asus charger which only provide 19V 2.37A after i hook the plus to VINT and negative to ground i can power on the laptop but after a few second it just turned itself off and wont back on until i disconnect the ground before connecting it again. and the cycle loops, but if i plug a battery it will boots to lenovo logo and after i remove the battery it stayed on a while after that it just off again....

Hi, I am locked out of mi bios (supervisor password), and i need it for disable secure boot and install Nobara, My laptop model is (ANV15-41-R8S7)

It generated a code.txt file:

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...

Hello guys,

I have a Mac Book Pro 2019 16" with Intel processor and all original parts that wont turn on anymore. I already tried disconnecting different parts (keyboard, screen, battery ...) and also different chargers (Apple Original 96W, Anker 100W) with no luck.
Using a USB C tester I am measuring:

With Battery connected: Constant ~ 20V; Cycling 0.04A to 0.8A
With Battery disconnected: Constant ~ 20V; Cycling 0.04A to 0.08A

The amp is cycling no watter what I do (pressing power button, holding power button)

With the help...

Hi,

Dell Inspiron 15 3520 with MB HDL50 LA-L946P that powers on with the ac adapter however does not power on with the battery. The battery is brand new and passes all dell diagnostic test. If the ac adapter is unplugged the unit will power off but displays 100% charge. The unit will not power using the battery. The battery does charge without issues. 😕 any help?

When the issue began, the display would shut off and then come back on, maybe after being on for an hour or so. It got worse and worse and now the TV will stay on for no more than a few minutes before shutting off and not coming back on.

I’ve tested it with using internal apps and external devices with WiFi off, so I don’t think it’s a CEC issue (does it with no devices plugged in) or a WiFi board problem (obviously). Firmware hasn’t been updated by Vizio in ages. There’s nothing obviously wrong when I open it up. Any suggestions on what board to replace first or a simple...

Board Serial 656933-001 REV 0E

Where should I start troubleshooting? tried cleaning the pins and using different RAMS to no avail.

Good Afternoon All,

So I am testing out a few spots on my laptop in continuity mode and I get a green light followed by a continuous beep. And they say if it beeps then the connection is bad. But the connections i'm testing are known good. Also on other areas where there is a short in the connection, it also beeps (like it's supposed to in this case), it shows the red LED indicating that it's bad. Is there a reason why the known good areas are also beeping but giving the green LED light indicating it's good? I work at a refurbish MSP where I can take a known bad board, do the measurements,...

Hi All,

Appreciate you sharing your expertise on this one. TL;DR I think it’s a hardware component failure at the board level. Could definitely use assistance with even basic troubleshooting. Really looking forward to learning about how to troubleshoot and repair. TIA!

Hardware:

Lenovo 16IAH7 Model:82VB0000US Slim 7 laptop

MFG 2022, bought refurbished 2023

CPU: Intel i7 12700H
GPU: Intel Arc 370M 4GB DDR6
RAM: 32 GB LPDDR5-4800 soldered RAM (dual-channel)
HDD: 1 TB M.2 2280 PCIe 3.0 ×4 NVMe SSD
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Dear BADCAPS Forum,

I am happy to have found this place and would love to get some input on my issues with a MacBook Air M1 (A2337).

A couple of days ago, I was using the MacBook on a low battery, and while running VS Code it shut down due to low battery. I rarely let it reach the point where it turns itself off, and if it does, I usually charge it immediately. This time, however, I left it uncharged until the next evening, and when I plugged it in, nothing happened. I waited until the following day, and still nothing.

I followed all the recommended troubleshooting...

MAKE: Thinkpad
MODEL: T480
TYPE: 20L5-0011US
SERIAL NUMBER: PF161EYD
BOARD NUMBER: NM-B501
OS: Fedora 42

My PC battery died in the middle of a BIOS update. Now I am just getting a black screen. I have used the CH341a programmer to read the original BIOS. I also obtained a clean BIOS dump from this thread. I am using UEFITool to read the bin files. I have read in places that there are specific portions of my original BIOS that need to be written to the new .bin file before writing it back to the chip. I've heard that the MAC address needs to be copied...

Hello,
I'm new to this Forum, so I hope it's the right place for this topic.
Im a student from germany, and as a hobby I repair electronics. I started microsoldering maybe 1-2 years ago.
I have a MacBook Pro 14" m1 Pro with 10 Cores and 16/1tb storage. The board Number is 820-02098-A.
The MacBook has a light water damage. Coffee got spilled over it, but the Mac continued working only the battery didn't charge anymore and when the battery was empty the Mac turned off and doesn't show any sign of life now.
I opened it up and there were only three drops of coffee...

- I’m troubleshooting a Gigabyte RTX 3080 Ti Gaming OC that throws read errors on all the vram chip.
- The card powers on and fans spin, but memory initialization fails.
- Powered-on measurements show FBVDDQ at 1.36 V and PEX_DVDD / PS_PEXDVDD_SW at ~0.96 V, while thermal imaging shows the FBVDDQ inductor heating up.
- Powered-off resistance tests reveal FBVDDQ Bank ~50 Ω and NVVDD ~1 Ω.
- Looking for advice on whether this pattern points to shorted GDDR6X chips or GPU internal issues, and how to identify which specific VRAM chips need replacing....

Hey everyone,

I recently bought a Dell G15 5515 with an AMD Ryzen 7 5800H and 3060 RTX. The BIOS chip on it was dead, and my hardware guy replaced the chip. After that, everything was working fine.

The BIOS is currently at version 1.22.1, and I wanted to update it. I downloaded the latest BIOS version from Dell Support using my ST: FQZMYJ3, but when I tried to run it, it says "unsupported system." I asked my tech guy what he did, and he said he took the chip from another board and flashed it onto mine.

When I check the BIOS using the F12 menu Flash...

Hi everyone, I have an Inspiron 7506 laptop I've had for a few years, and it'd occasionally have a problem where after I'd power it off, it wouldn't turn on again unless I disconnected, drained residual voltage by pressing the power button, and reconnected the battery. It now seems to be occurring every single time I shut down the laptop and attempt to turn it back on again. I have done all the common troubleshooting steps, such as completely disconnecting the battery & CMOS battery and draining the voltage and leaving it for an hour, and I've even replaced the battery. This is definitely...

https://youtu.be/0MkBwakDwlk


i've included link for video showing the issue
the laptop doesn't start and only numlock light once and off or sometimes it stayed lighting for two second and off. there's no response from the laptop
it started two days ago the lap work fine then restart from it's own few times
then when i try to start it show the logo screen then restart and now won't start and doing that symptoms

what i've tried.
changes thermal paste, Bios battery, Ram , even the processor , power Adapter

so what could...

Does anyone have the BRD & schematic? I'm having an issue with the fan running at %100 after cleaning up some liquid damage.

Hi Guys.
Here I have a 4070ti with some issues.
When powered on the led lights which power on (where the zotac logo is) flash green 3 times. Once it has flashed green 3 times it does not post.

Just to mention I have not worked on many 40x cards before therefore some of my assumptions could be wrong. If you do happen to find that my analysis is wrong or I have missed something feel free to comment.
Additionally, I do not have a schematic for this exact card model so if anyone is willing to post the schematic it would be much appreciated.


Resistances:...

Hello!
New here. I just bought a broken Focusrite to begin my journey in repairing stuff.
I would like the schematic for the Focusrite Scarlett 2i2 3rd Gen audio interface.
Thanks in advance if anyone answers!

The customer gave me this for changing the old battery, and then I replaced the new battery. always showing this message. I changed many chargers and programmed the new BIOS as well. Does someone have any idea for this message?




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