Apple Logic Board 820-00687 Bios

Looking for 820-00687 Bios, clean or not clean. I have cracked bios chip on my 820-00687. Thanks!

 

[ThienBui]

Looking for 820-00687 Bios, clean or not clean. I have cracked bios chip on my 820-00687. Thanks!

820-00687 you see it above board this ?

 

[Rykono]

Which bios chip is this then?

 

[ThienBui]

Which bios chip is this then?

i ask code ? Please take send one photo motherboard code.

 

[Rykono]

Here

 

[ThienBui]

Here

Here only is subboard it not is main board code. Stupid, Understand ?

 

[Rykono]

Sorry i know communication is hard. I was confused as to why you sent me a picture of the subboard. Here all the codes.Take your pick.

 

[ThienBui]

Sorry i know communication is hard. I was confused as to why you sent me a picture of the subboard. Here all the codes.Take your pick.

Old bios error what? Please backup and send i help build.

 

[Rykono]

Cracked chip, need to reprogram a new chip can not pull data from current chip.

 

[Rykono]

crack in corner of chip.

 

[ThienBui]

crack in corner of chip.

i Unavailable bios this, you need wait i find...

 

[Rykono]

Thank you for help.
cảm ơn bạn

 

[B4RDOCK]

crack in corner of chip.

have you try to read bios chip ?
(desolder chip and solder wire to connect to your programmer ?

 

[Rykono]

No Detection

 

[Rykono]

Well actually i reconnect wires and i can read, but chip is too new for my program.

 

[B4RDOCK]

Well actually i reconnect wires and i can read, but chip is too new for my program.

1mb is incomplete bios , you have tl866 or what programmer you use ?

 

[Rykono]

That read was using a CH431 programmer direct wired. I am going to try with a raspberry pi using https://www.flashrom.org/Flashrom. If flashrom does not work, i will order a TL866.

 

[Rykono]

Any luck on finding the bios for this board? I have finally got a new bios chip.

 

[ThienBui]

Any luck on finding the bios for this board? I have finally got a new bios chip.

How?

 

[Rykono]

I had a broken bios chip, I got a new one from a 820-00244 board. Now i just need to reprogram.