Firmware bundle for the Acer Z1401 with board marking MBPRNCBT44 and T820 noted in the name. The rar archive is described as containing the main system BIOS, the EC (embedded controller) BIOS and a repair guide, so both flash chips can be restored from one set. The EC firmware governs power sequencing, charging and keyboard, and a corrupted copy often causes no-power faults. Back up both original chips before programming, and make sure each image goes to its matching chip and fits its capacity.
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 @abgm_manutencao_bios. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @abgm_manutencao_bios | 15 Feb 2020 | Open file on RM Schematics |
| @bios_main_ec_kbc | 14 Jul 2022 | Open file on RM Schematics |
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 →