Small firmware file labeled for a Lenovo ThinkPad T2 with the identifier 48.4vx01.031, only 14.2 KB in size. A file this small is not a full system BIOS image and is more likely an EC, EEPROM or similar partial dump, so inspect it before writing. The name gives no board number. Identify the target chip on the board, read and save its current contents with a programmer, and confirm the file size matches the chip capacity, since an image of the wrong size will not fit or work.
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 | 7 Jan 2021 | Open file on RM Schematics |
| @biositechyangiyer | 1 Feb 2021 | Open file on RM Schematics |
| @BiosSchematicWorld | 4 Feb 2022 | Open file on RM Schematics |
| @pepeelectronica | 20 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 20 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
| @schematics_bios | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 24 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 →