A1534 820-00045-a efi bios dump need

[peste]

Re: A1534 820-00045-a efi bios dump need

can you help
SN C02W601LHH27
EMC 3099

post the original bios of the laptop, and what problem do you have ???

[mustafa4444]

Re: A1534 820-00045-a efi bios dump need

peste pls guide me how to program this bios. ?
The machine was working fine , suddenly it turned into no display. cpu heats ok. I feel somewhat more than normal. EDP_BKLT_EN signal is absent ie;0v. I feel maybe bios file is corrupt. Pls guide me

[piernov]

Re: A1534 820-00045-a efi bios dump need

Will be a CPU problem as usual.

[mustafa4444]

Re: A1534 820-00045-a efi bios dump need

if anybody have a video of how to program the bios of 820-00045 pls post.Thanks

[peste]

Re: A1534 820-00045-a efi bios dump need

if anybody have a video of how to program the bios of 820-00045 pls post.Thanks

post the original bios of the laptop... you need an SPI programmer..

https://www.youtube.com/watch?v=DWWigscuQDY

[ALUCARD5050]

Re: A1534 820-00045-a efi bios dump need

thanks for sharing

[mauricio_rg2011]

Re: A1534 820-00045-a efi bios dump need

Help me unlock efi a1534

[alfredposadas09]

Re: A1534 820-00045-a efi bios dump need

Help me unlock efi a1534

dude this is a blank file

[frenkh]

Re: A1534 820-00045-a efi bios dump need



post the original bios of the laptop, and what problem do you have ???

Good evening. Macbook a1534 emc2991. Failed update, stuck after shutdown, internal memory is not detected. The volume is 512GB. It works fine with an external drive, when you try to update, you see license errors. I'm thinking of flashing EFI Bios. if you can help. Serial Number CO2SC1CAGTHV

[peste]

Good evening. Macbook a1534 emc2991. Failed update, stuck after shutdown, internal memory is not detected. The volume is 512GB. It works fine with an external drive, when you try to update, you see license errors. I'm thinking of flashing EFI Bios. if you can help. Serial Number CO2SC1CAGTHV

post the original bios of the laptop, the corrupted one...

[frenkh]

post the original bios of the laptop, the corrupted one...

Native Backup

[peste]

Native Backup

try .. but be careful when writing because the bios posted is longer... remove the bios chip from the motherboard, before writing or reading, or stick wires between the programmer and the chip..

[frenkh]

try .. but be careful when writing because the bios posted is longer... remove the bios chip from the motherboard, before writing or reading, or stick wires between the programmer and the chip..

Thank you very much. I managed to upload the BIOS without errors. Startup there is only WiFi stopped working. But the internal disk is still not visible in the system. The personal macbook was practically not used. has 35 charge cycles only. Is it possible to drip only the CPU further..... All resistances are normal. SSD power supply present

[biber]

A1534 EMC 2746
MB:820-00045
S/N:C02QQOCNFWW3
TNX

[peste]

merged post..