A failed BIOS update can brick your laptop (turn it into a paperweight). Ensure the AC adapter is plugged in and the battery is charged to at least 50%. Do not touch the laptop during the update.
Before downloading files, it is crucial to understand what you are changing. The BIOS on your C660 is a low-level firmware stored on a chip on the motherboard. It is the first code that runs when you press the power button, initializing hardware (CPU, RAM, hard drive, keyboard) before handing control to Windows. toshiba satellite c660 bios update
or close the lid during the update. Post-Update Steps Once the update is complete and your laptop restarts: A failed BIOS update can brick your laptop