Apple MacBook A1398 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Apple |
| Model | MacBook A1398 |
| Device | Laptop |
| Format | RAR |
| Size | 4.5 MB |
| BIOS chip size | 8 MB |
| Marks | tested by uploader |
| Added | January 22, 2025 |
| Updated | |
| Original file name | Macbook A1398 2015 820-00426A 8MB TESTED OK .rar |
Where to get the file
Opens the matching file on RM Schematics, or its source details if it is not catalogued there yet.
Alternative links
No other copies are known yet.
Description
Macbook A1398 2015 820-00426A 8MB TESTED OK BIOS dump for the Apple MacBook A1398 laptop, supplied as a RAR archive of about 4.5 MB and sized for an 8 MB flash chip. The uploader marked it as tested, though that is their own claim and not something the catalog has checked. The original file name lists 2015 and board number 820-00426A, so compare that number with the one printed on your logic board before using the dump. Technicians use a BIOS dump like this to reprogram the SPI flash with a programmer after corruption or a failed update.
For the Apple MacBook A1398 the catalog also has 3 BIOS dumps.
Description generated from the catalog data. ·
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Questions about this file
How do I flash this BIOS dump?
Write it to the SPI flash chip with a programmer such as the CH341A and a SOIC8 clip. Read and keep the original contents first, and check that the chip size matches the dump.
Will this BIOS work on my board?
Only if the board number and revision match: Apple MacBook A1398. Dumps from a different board or revision can leave the board dead.
What does “clean ME” mean?
The Intel ME region in the dump has been reset, so it can be used on another board of the same model. Keep your original dump and transfer serial numbers if needed.