Unbrick Your DEAD Laptop! Fix BIOS Corruption with CH341A (ASUS G750JM)
~ Fix corrupted gaming laptop Bios
❗️Check this video for more help! • Unbrick Your Dead Laptop! Fix BIOS Co...
Welcome to this comprehensive tutorial on fixing a corrupted BIOS in your ASUS G750JM laptop! If you encounter any issues or have questions, feel free to leave a comment.
In this video, I demonstrate the step-by-step process of repairing the corrupted BIOS using a CH341A programmer and a SOIC 8 pin clip. Essential tools include the CH341 programmer, SOIC 8 pin clip, a functional computer or laptop, required software such as AsProgrammer, CH341Par, Ser.exe drivers, a hex file editor like HxD, and basic tools like screwdrivers (small flathead and Philips head).
This guide is not exclusive to the ASUS G750JM; it is applicable to other models in the Asus G750 series, such as Asus G750 JW, Asus G750JH, Asus G750JX, and similar Asus laptops with comparable internals.
Downloads:
Hex editor: https://mh-nexus.de/en/downloads.php?...
AsProgrammer: https://github.com/nofeletru/UsbAsp-f...
Drivers: https://www.onetransistor.eu/2017/08/...
Bios: Google your specific model name with drivers after it, like Asus G750JM bios, and look for the original ASUS website.
🌐 Resources and Tips:
Purchase the programmer on Amazon, eBay, or AliExpress, ensuring compatibility with 3.3V.
Additional forum tutorials: https://rog-forum.asus.com/t5/rog-gam...
Upgrade your laptop after fixing it! • Laptop Upgrade - Lenovo Ideapad 320 |...
Here are the timestamps so you can skip to what you're looking for!
00:00 - Introduction
00:18 - Removing the battery and discharging the laptop by holding the power button for 30 seconds
00:25 - Lift the flap and remove the rubber plugs on the back
00:55 - Removing screws on the backplate
02:42 - Removing 2 Ram sticks out of 4
03:20 - Removing disk / CD drive
03:33 - Removing back speaker plate
03:50 - Disconnecting the speaker cable
04:11 - Removing 2 screws holding the top plate to the frame
04:23 - Unclipping the top plate from the backplate
04:50 - Disconnecting 4 ribbon cables from the top plate
05:33 - Removing the CMOS battery
05:45 - Identifying the BIOS chip, and its model name, winbond …
06:05 - Discharging the laptop by holding the power button for 30 seconds
06:13 - Removing ram, fan connectors, ribbon cables, display cable
07:03 - Plugging in the laptop charger, after it turns on hold power button for ~10 secs until light turns off
07:22 - Prepare your ch341a programmer and clip
07:50 - Attaching the SOIC clip carefully
08:20 - Plug in your programmer to your computer
08:40 - Open your programmer software and identify IC, choose correct model name from your chip.
09:10 - Read IC, save the read as backup1
09:40 - Read IC again, save the read as backup2
09:52 - Compare hash codes of the backups, make sure they are the same with CMD.
~$ certutil -hashfile filename md5
10:30 - Open HEX editor and load the 2 files, update file and backup file.
11:17 - Create a new Hex file, newbios = backup[0 to 1FFFFF] + update[800 to 6007FF]
12:56 - Open the newbios file in your Programmer, here AsProgrammer
13:04 - Program the IC with your created newbios file that is exactly 8192 KB
13:23 - Read the IC for a final time, save as afterflash
13:45 - In CMD, compare hashfiles of the newbios and afterflash
14:17 - Unplugging the programmer, charging cable and then the SOIC clip
14:45 - Discharging the laptop by holding the power button for 30 seconds
14:57 - Reconnect the fan connectors, display, ribbon cables, ram sticks etc.
15:37 - Testing if the bios was properly programmed
16:06 - Putting the laptop back together
21:30 - Final test to see if the keyboard and everything works
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#techtutorial #bios #ch341a #diytech #asus #asusrog
how to fix corrupted laptop bios
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