Apple A1278 820-3115 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Apple |
| Model | A1278 |
| Board number | 820-3115 |
| Board maker (ODM) | Apple |
| Device | Laptop |
| Format | RAR |
| Size | 3.9 MB |
| Added | December 6, 2018 |
| Updated | |
| Original file name | 820-3115-B MCBOOK PRO 13.3 A1278 I5 UMA.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
BIOS dump for the Apple A1278 laptop, board number 820-3115, supplied as a RAR archive of about 3.9 MB under the original file name 820-3115-B MCBOOK PRO 13.3 A1278 I5 UMA.rar. The file name suggests a 13.3-inch MacBook Pro variant with an i5 and UMA graphics, though the listing itself does not confirm those details beyond what the name says. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after a corrupted firmware image or a failed update.
The catalog also lists 1 schematic, 4 boardview files, and 5 BIOS dumps for board 820-3115.
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 A1278 820-3115. 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.