Asus Zenbook UX425JA bios help needed

[ceridwen]

Hi,
I'm having difficulty figuring out how to get a working and properly sized bios for an Asus Zenbook UX425JA. The bios from Asus is 16.25 MB, whereas the XM25QH128A on the motherboard - which I am attempting to program with a CH341A - is 16 MB in size.
SN: L833NBLP0002CXMB
Thanks.
The bios from the website can be found here:

[m1ch43lzm]

Please read the BIOS chip with programmer and attach it here, the BIOS from ASUS website can't be flashed as is, also the DMI area (S/N, WIn key etc.) has to be copied to a clean BIOS

[ceridwen]

Please read the BIOS chip with programmer and attach it here, the BIOS from ASUS website can't be flashed as is, also the DMI area (S/N, WIn key etc.) has to be copied to a clean BIOS

The bios seems to be corrupted or have other issues (I have tried using flashrom to dump the current bios but every byte was set to 255).

[m1ch43lzm]

Check connection with programmer, if you're using a clip, try connecting again, it may take several tries, I don't think chip is completely empty (FF FF ...)
Try AsProgrammer or NeoProgrammer in Windows, or iMSProg in Linux, press Read ID button, it should detect the chip ID

[ceridwen]

IMSProg errors with "error reading block 0", and reading the ID shows the following: