820-4924A help

[luckydip]

Guys

I've tried cleaning the password/region but still get a slow loading bar. This is the first one I've done - can someone please help me with this? I've uploaded the original dump.

thanks

[Claudiomfa]

Re: 820-4924A help

try and report

[luckydip]

Re: 820-4924A help

try and report

Thanks for the quick reply - boots to flashing folder - can't do PRAM or alt to do a fresh iinstall

[Claudiomfa]

Re: 820-4924A help

Try this

[luckydip]

Re: 820-4924A help

Try this

Black screen, no chime, cpu luke warm

[peste]

Re: 820-4924A help

Black screen, no chime, cpu luke warm

try..

[luckydip]

Re: 820-4924A help

try..

thanks for the file

Black screen, no chime, cpu warm

[peste]

Re: 820-4924A help

thanks for the file

Black screen, no chime, cpu warm

post serial number S / N

[luckydip]

Re: 820-4924A help

post serial number s / n

c0257ngkfvh3

[peste]

Re: 820-4924A help

c0257ngkfvh3

try..

[luckydip]

Re: 820-4924A help

try..

Yeeeaaahhh - this one seems to be working - thanks a lot!!!

[ahoonid]

Hey everyone,

I tried creating a bios dump of a 820-4924A macbook pro to change the serial number. I didn't verify the dump and quickly erased the chip before making sure it's a good copy and now the bios seems a bit corrupt.

Now since I wanted to write the original SN of the previous damaged board, I simply created a dump from the original motherboard and wrote it on the new motherboard's bios chip. I then remembered the whole ME region issue and now I am stuck. I tried to follow piernov's video on how to clean the ME but got confused half the way through 😅.

I am attaching both bios dumps I have. The corrupt one (being used on the new motherboard) and the healthy one (from the previous cpu dead motherboard). I need the healthy one's SN on the corrupt dump.

Would it be possible for someone to kindly help with this?
I would much appreciate it.

[SMDFlea]

Post the serial number https://www.badcaps.net/forum/troubl...before-posting

[ahoonid]

C17QG51QFVH3 is the serial number that I need. Sorry I forgot to write it.