BIOS image collection for the Lenovo B50 Touch, labelled with the ZIWB0 B1 E0 board code and LA suffix, which points to a Compal-made mainboard in the ZIWB family. The 2.46 MB RAR archive is intended for restoring the system firmware by writing it directly to the SPI flash with an external programmer. Because several B50 variants exist, compare the code printed on your board before use, keep a copy of the original chip read, and verify that the extracted file size corresponds to the flash chip 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 @biosarchive. Enginerys does not host this file.
All sources (11)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 2 Sept 2019 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 29 Oct 2019 | Open file on RM Schematics |
| @laptexlaptopbios | 13 Jul 2020 | Open file on RM Schematics |
| @one5technology | 21 Nov 2020 | Open file on RM Schematics |
| @pepeelectronica | 21 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @skclappybios | 10 Apr 2024 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 31 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 2026 | 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 →