Opening volume of a three-part RAR set with auto-patch firmware for model A315F, bootloader binary 2, Android 12 (OS12), arranged as four files. That layout usually covers bootloader, system AP, modem CP and region CSC, flashed together for a complete reinstall. A patched package alters stock partitions, so verify behaviour on a test unit. Extract from this volume with parts 2 and 3 alongside, and make sure the phone is not on a binary newer than 2, or flashing will fail.
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 →