The Toshiba ACPI BIOS fixes many errors to your Satellite L550/L555. So if you have some issues regarding BIOS on your laptop and spotted that the problem is not because of laptop drivers but with BIOS, you should flash update your BIOS by downloading the file below.

Toshiba ACPI BIOS update fixes
- Error loaded UMA fan table
- Modified Operating System Windows 7 type namescape location
- Japan Model sub menu select item and help strings
- Edit string for support non OS models
- Replacing function key Fn + F5 with Windows 7 native display switch key when TVAP doesn’t installed
Supported Laptop Models
- Toshiba Satellite L550-ST2721
- Toshiba Satellite L550-ST5702
- Toshiba Satellite L550-ST5701
- Toshiba Satellite L555-S7914
- Toshiba Satellite L555-S7918
- Toshiba Satellite L555-S7916
Driver Version: 1.50
File Size: 5.9 Mbyte
You can download BIOS
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