Third and last volume of a RAR archive with an auto-patch firmware package for model A315F, bootloader binary 2 (BIT2) and Android 12 (OS12). The name indicates a four-file layout, the usual BL, AP, CP and CSC set for a full flash. Patched firmware modifies stock images, often for service tasks, so test carefully. This part only works with parts 1 and 2. Confirm the phone is on binary 2, since a device with a higher bootloader level will not accept this package.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @mrepairo. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →