Macronix MX77U5 chip reading and flashing

[ArT]

Could you share datasheet for this chip? I can not google it, maybe chip has crypto registers and datasheet is not publicly available.

What READ ID does it report?

Have you tried to read it as FLASH -> 25 series -> 25...512 [PP] with 1.8V VPP ? Or FLASH -> 25 series -> Macronix -> MX25U51245G

[byonatane]

Hello,

I tired all of these.
Indeed datasheet is not available publicly.
I did find this about another chip of same family though : https://smh-tech.com/macronix-mx77u25650f/

Maybe this can help?

I'm lost with this and I really want to make it work. Bought a 300€ 5g module from lenovo for compatibility and still cant make it work because of thse stupid policies.

[Pityu]

MXIC MX77U51250FZ4142
SPI ID C2753A (C2753AC2753AC275:9F:SFDP)

I read/write as MX25U512

[byonatane]

Hey,

Thanks for your answer
I also manage to read, but the dump is almost empty and not really workable.

do you have same or you can really get the image of bios?