Libretech-flash-tool -

A: Unlikely. Boot ROM is read-only and cannot be erased. Use the tool's "unbrick" mode: ./unbrick.sh --force-maskrom . This cycles the reset line while injecting a low-level boot0 payload.

If your board is failing to boot due to a corrupted U-Boot sector but your operating system partition is intact, you can refresh just the bootloader blobs: libretech-flash-tool

The official Libre Computer OS image ( .img or .img.xz ) downloaded from their official distro server. A: Unlikely

In the meantime, here’s a for a common need: “Automated device detection + safe flashing with backup before write” libretech-flash-tool