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#16 RE: [Request] BIOS UNLOCK (AMI) - Acer Predator Orion 5000 P05 615s by mark84 08.09.2021 01:42

@BDMaster

Thank you.

I've check guides and videos (I have been reading and watching videos for last 9 hours).

Please help me with questions above...
Do I must unplug CPU, GPU, RAM, disk... ? What about BIOS battery?
Please also let me know which chip is correct one (which one to backup - MX25L12872F or MX25L5121E) and what should I do next to unlock it.

Regards,
Mark

#17 RE: [Request] BIOS UNLOCK (AMI) - Acer Predator Orion 5000 P05 615s by MeatWar 08.09.2021 02:15

avatar

Its not always equal in all systems, and yes its better to disconnect all device, leave the cpu for now, CMOS battery off for now, and ALWAYS make backup of ALL SPI (Name it) chips on the motherboard.
BDMaster will then identify ur dumps with more accuracy.
This is not a TI 24h tech support, this is a user forum, with real life out there, ull have to give time to whoever is offering help.

https://www.macronix.com/Lists/Datasheet...8Mb,%20v1.1.pdf (MAIN BIOS)

https://www.macronix.com/Lists/Datasheet...1Mb,%20v1.3.pdf (FW/EC)

#18 RE: [Request] BIOS UNLOCK (AMI) - Acer Predator Orion 5000 P05 615s by mark84 08.09.2021 02:40

Thank you, I understand this is not tech support and I am really very grateful for your help.
English is not my first language so some things are not that clear to me and I am sorry if I wrote something wrong.

I've learn A LOT in last days and I took time before each posting (trying to figure as much as possible on my own).
I've been studying ch3401a for last 9h without break (and I am still learning before trying it myself).

I've read the manuals and there is no mention about SPI in MX25L5121E so if I understand you correctly this is different chip that I don't need to backup but I need to check other chips on motherboard if there is any other SPI (and make a backup of it)?

Thank you again for your help.

Regards,
Mark

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