Asus B5402CV - I am looking for a bios

[Roti]

Procesor: SRMJ8
Hello
I'm looking for a BIOS for an Asus B5402CV laptop. Unfortunately, the original BIOS chip (25R256JVEN) has been damaged.

[SMDFlea]

Procesor: SRMJ8
Hello
I'm looking for a BIOS for an Asus B5402CV laptop. Unfortunately, the original BIOS chip (25R256JVEN) has been damaged.

You must post the laptop serial number,its in the rules. The bios chip looks ok physically, are you saying its damaged because your programmer can`t read it

[Roti]

S/N R9NXNZ00N81638A
The old one looks like this
I soldered a new one

[kalilinux25]

S/N R9NXNZ00N81638A
The old one looks like this
I soldered a new one

B5402CVA_MB_R2.1
IA4YT LA-L86AP
Rev: 1A
2023-02-14 I'm having a hard time to help you due you don't have any backup as you said

[SMDFlea]

S/N R9NXNZ00N81638A
The old one looks like this
I soldered a new one

The laptop is still under warranty. Can`t find a bios anywhere and only bios updates are available from Asus,not a full bios image.

[Roti]

The only thing I could find was the bios for the Asus B5402CBA board from *****x. Can this Bios from the official website be converted to use with the programmer? Attached is the bios from the *****x website

[Roti]

Can someone help me prepare the bios from the official Asus website to program the bios chip?

[kalilinux25]

The only thing I could find was the bios for the Asus B5402CBA board from Vinafix. Can this Bios from the official website be converted to use with the programmer? Attached is the bios from the Vinafix website

what happend when you flashed this bin file ??

[Roti]

I found out that 25Q256JV is not interchangeable with 25R256JVEN and will not work.
This is information from Elvikom
I ordered the correct chip on Aliexpress.
After pressing the power button, the white diode lights up for about 10 seconds - the current consumption does not increase.
KB9052QD (V)
+3VLP_EC - 3.3V
EC_RST# - 3.3
PCH_PWROK - 0
PBTN_OUT# - 3.3 (after pressing the power button)
EC_RSMRST# - 0
SYSON - for a few seconds after pressing the power button 1.5V and immediately drops to 0
UC4(25Q256JV) - after pressing the power button n. 1,3,5,7,8 - 3.3V, on the oscilloscope a straight line on all legs