ASUS UP6502ZA - 16MB SPI dump request - No boot

[DrSAS]

Hello everyone,

I'm trying to recover a ASUS Zenbook Pro 15 Flip OLED (model UP6502ZA, serial R1N0CV06A262028, motherboard 60NB0W20-MB1030) which stopped booting after a Windows 11 update. The laptop powers on but there's no display and no POST.

I have a CH341A v1.612 programmer with a WSON 6x5mm pogo adapter. I managed to get two identical consecutive reads, so I believe my corrupted dump is "reliable".

I've spent the last few days trying to prepare a flashable image from the official ASUS bios file (UP6502ZAAS.312, 19MB) downloaded from their support site. Here's what I've tried:

- Used BIOSUtilities and UEFITool to extract components - they don't match my chip dump structure
- Followed razor_amd's tutorial and removed the first 2KB from the .312 file as described
- Used ME Analyzer on my backup - it shows Intel ME 16.1.27.2176 (CSE, ADP-LP chipset, ~5MB region)

The problem is that the BIOS signatures in my corrupted dump (like "Microsoft Corporation UEFI CA") aren't found anywhere in the official .312 file or its extracted components. The .312 appears to be formatted for in-OS updates rather than direct SPI programming.

Since my system uses ME 16.x (more recent than the ME 9.5 covered in razor_amd's tutorial), I'm stuck. I don't have access to the proper tools for ME 16.x reconstruction.
I'm hoping someone here either has a clean 16MB SPI dump from an identical UP6502ZA, or can guide me on how to properly extract/rebuild a programmer-ready image from the ASUS .312 file for ME 16.x systems.
I can provide my corrupted dump and the official .312 file if that helps with analysis.

Thanks in advance for any help, happy holidays!

[hoaca388]

Hello everyone,

I'm trying to recover a ASUS Zenbook Pro 15 Flip OLED (model UP6502ZA, serial R1N0CV06A262028, motherboard 60NB0W20-MB1030) which stopped booting after a Windows 11 update. The laptop powers on but there's no display and no POST.

• Provide a BIOS/EC dump if possible

Rule : https://www.badcaps.net/forum/troubl...before-posting

[DrSAS]

Attached is my corrupted 16MB dump. Thank you!

[hoaca388]

Attached is my corrupted 16MB dump. Thank you!

UP6502ZA

[DrSAS]

Thank you hoaca388 for the file! I successfully flashed it to the chip and verified multiple times that it wrote correctly, but I still can't get the device to boot.

As soon as I plug the laptop into power (without battery), both LEDs light up, then two seconds later the power LED blinks twice, then the battery LED turns off, and two seconds after that, the power LED also turns off.

After that, if I hold the power button for about 20 seconds, the LED sequence is slightly different:

- Power LED lights up for two seconds and turns off
- About 5 seconds later, it lights up again along with the battery LED
- The battery LED turns off about two seconds later
- The power LED turns off about two seconds after that

Note that before accessing the motherboard to program the chip, the symptoms were:

- No display at all
- No keyboard response (even external keyboard)
- Nothing on external display
- But the power LED stayed on continuously and the fans could even spin up after some time

I'm starting to suspect there might be another hardware issue beyond the BIOS. Any ideas?

[m1ch43lzm]

Thank you hoaca388 for the file! I successfully flashed it to the chip and verified multiple times that it wrote correctly, but I still can't get the device to boot.

As soon as I plug the laptop into power (without battery), both LEDs light up, then two seconds later the power LED blinks twice, then the battery LED turns off, and two seconds after that, the power LED also turns off.

After that, if I hold the power button for about 20 seconds, the LED sequence is slightly different:

- Power LED lights up for two seconds and turns off
- About 5 seconds later, it lights up again along with the battery LED
- The battery LED turns off about two seconds later
- The power LED turns off about two seconds after that

Note that before accessing the motherboard to program the chip, the symptoms were:

- No display at all
- No keyboard response (even external keyboard)
- Nothing on external display
- But the power LED stayed on continuously and the fans could even spin up after some time

I'm starting to suspect there might be another hardware issue beyond the BIOS. Any ideas?

Try
UP6502ZA
Clean ME + BIOS 312 + DMI
S/N R1N0CV06A262028

[DrSAS]

It works perfectly! Thank you so much for rebuilding the BIOS with my DMI data, the laptop boots normally now.
I really appreciate you taking the time to help me out. This community is amazing!

Thanks again m1ch43lzm hoaca388 !