The exact commands vary based on your device and flashing protocol. Ensure your device’s wiki page is open. If there are no specific instructions for flashing to your device’s partition, follow these generic commands.

Fastboot:

Download fastboot from the Android platform tools or your distro’s package manager.

Plug in your device and enter flashing mode.

Run fastboot devices to verify device detection. Flash the partition (userdata or system) with fastboot flash PARTITION path-to-rootfs.img.

If flashing userdata, wipe the system partition with fastboot erase system.

Reboot the device with fastboot reboot to ensure data integrity.