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A1398 2014 - BIOS Lock
- Thread starter Saurabh
- Start date
Such change can generate ME region issues.
BIOS file requires clean ME region before place in other board.
Direct change will work, but you can expect to weird issues in time; like reboots, turns off in 5-30min, crash before login macOS, etc...
BIOS file requires clean ME region before place in other board.
Direct change will work, but you can expect to weird issues in time; like reboots, turns off in 5-30min, crash before login macOS, etc...
You need to remove the SPI chip and read it first.
Verify to get good reading and save a backup in your service PC.
Post the exact 820-xxxx board code you have on the desk.
Verify to get good reading and save a backup in your service PC.
Post the exact 820-xxxx board code you have on the desk.