Please can somebody tell step by step how to flash bios and what is a dump file
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Re: Flash bios
I use a tl866cs universal programmer. They read quite a lot of chips. Ch341 is cheaper and can read most bios chips if you only want to program bios.
I use sop to dip adapters desolder bios. Put it in the programmer and back it up onto the computer. I select tbe right chip and there is a dropdown menu to read the contents. It just reads the contents of the chip and thats a bios dump.
I would then open the new bios file and click program to write to the chip. Solder it back to the main board and it should hopefully work.
I can try taking photos of the process if you want. Let me know
Dump file is the output contents of what was read from the bios chip
Hope it helps. My English isn't to great. I hope readable.... -
Re: Flash bios
It can very clear for me if you can illustrat with photo.thanksComment
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Re: Flash bios
Can someone explain differance betwwen BIOS and EC, and how to find EC on board?...the quieter you become the more you are able to hear...Comment
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Re: Flash bios
What is EC?Comment
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Re: Flash bios
Embedded controler...the quieter you become the more you are able to hear...Comment
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Hello everyone.
I have L460 Type 20FV (2 X 8MB bios chips) with no boot issue after BIOS update (black screen with restarts, common issue on this model + BIOS update).
BIOS dump(s) from this post https://www.badcaps.net/forum/showpo...7&postcount=27 makes the laptop boot absolutely fine, no delays, etc..
But there is an exclamation mark in the device manager for the LAN card right after fresh OS installation - LAN naturally doesn't work. I saw requests like "BIOS: fix LAN" on other sites.
Could someone point on a direction... -
Hi, I have an MSI PRO B660M-G DDR4 board with damaged BIOS and i need a bios dump from a real board, along with MAC, UUID and Serial Number info (eg. a BIOS screenshot and pictures from the board stickers).
I need to reconstruct the bios on my board, based on another bios image form a real board - meaning a bios image containing MAC address, UUID and Serial number. A stock BIOS is not suffiecient, as it is impossible to discover where the MAC, UUID and SerialNumber are stored. Tried with a similar board, but there are too much differences, and the stock BIOS is missing a lot of...11-17-2023, 10:56 AM -
This laptop is the same laptop I was working on in this thread and I wasn't sure if I should post a new topic or post in that thread because I already solved the issue that thread was discussing and this is a completely different issue although it is dealing with the same laptop. I decided to make a new thread since it's a new issue, but please move if I made a mistake.
Motherboard model number: DA0PAMB46A1 REV: A
Secondary motherboard model number: 0PAB
SKU: 685K4UA
Serial number is: 5CD3223BJP
Recently reflashed this laptop with latest BIOS and once... -
Following this guide (https://www.reddit.com/r/thinkpad/co...g_and_flashing) i re-flashed my t480s BIOS using an external (CH341A) programmer. The flash didnt work, so i reverted back to my BIOS backup successfully. The BIOS in the chip and the BIOS backup file are identical according to windows' file compare. The revert, however, didnt work: the only thing the computer does is flash the power button 3 times when AC power is connected. I've tried unplugging the CMOS battery, holding the reset button and holding down the power button- no signs of life.... -
Hi everyone,
Iām looking for a 2 MB BIOS dump for a Lenovo IdeaPad 5 16ARH7H / Legion 5 with mainboard NM-E471 Rev. 2.0.
The BIOS chip is a Winbond W25Q16FW (1.8V, 2MB) and it's completely unresponsive / bricked. I tried recovery via USB but no success. Now I want to reflash it externally using a CH341A programmer.
I already found 32MB dumps (e.g. from Vinafix and Badcaps), but they are too large for the chip ā and the last 2MB in those files are just FF FF FF....
ā What I need:- A working 2MB BIOS dump
- Matching NM-E471 Rev. 2.0, e.g. JY575
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