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Power failure while updating bios
#1
I'm new here and don't know how should I ask for help. My apologies . I was updating bios to 5.90 form 5.20 and while updating I faced load shedding issue and pc turned off (73% done). After that turned power on and nothing shows on monitor (it's not posting anything on monitor). I got random code on led which is located on motherboard. Led shows me few random code changing and F2 then F9 and it shows forever.

My motherboard Bios chip model: MX25U12873F

May be my motherboard bricked.

PC Specs: Ryzen 7 1700 Asrock Fatal1ty X370 Gaming X G.skill flarex 3200 Mhz 8GB Corsair MP510 250 GB Asus ROG Strix RX580 OC 8GB

my question is :

1. Is there any way to restore bios?
2. can I flash the chip using "BIOS_PH" header?
3. Can I flash this chip using an external SPI programmer (CH341A based programmers)? If I can flash using external should I desolder the chip?

Current situation: For the COVID-19 pandemic we are in lockdown situation. every service center is close now. and the the lockdown period is not mention yet. I'm a full time freelancer and I need to fix the motherboard asap. I can't effort new one now.

BIOS_PH header image:
[Image: f16t8715p142120n3_vjbTIsXu-thumb.jpg]



Only available flash programmer in my place is:
[Image: f16t8715p142120n2_JWzMypOb-thumb.jpg]
[Image: f16t8715p142120n4_ZjnRsrLz-thumb.jpg]

Please help me to fix this problem.
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#2
Hi friend,
only way to unbrick your firmware is to use the SPI Programmer with Pomona Clip.
You showed two models both goods.

Let's see here abput your pc eeprom :

https://www.win-raid.com/t796f16-Guide-U...l#msg51758

https://www.win-raid.com/t4891f16-Bios-B...ing-X.html

So You have to make a Firmware Dump by the programmer and then I will rebuild your Firmware based on stock bios.
let me know
Regards
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#3
I'm using CH341A programmer with 1.8v adapter to recover bios. I can read, erase, blank, and write. But after writng program when I try to verify it shows me error "chip with the contents are in disagreement".

The program I use to flash - asprogrammer, ch341 program v1.29 v1.31 (free) 1v1.30. they all shows me same problem.

Bios chip model: MX25U12873F

I downloaded 3.50 version of the bios from asrock website. Motherboard model: Asrock Fatal1ty X370 Gaming X
Downloaded the bios file and simply rename it from "X370GX_3.50" to "bios.bin" then tried to write. I don't know is this the right way or not.
I saw thread that said this problem occur only for poor connectivity. I tried with this SOIC8 SOP8 Flash Chip IC Test Clips and BIOS_Ph header connector but it shows same problem.

is this is the problem with file name or extension?

please help me to recover bios.
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