If your phone can still boot to recovery or power on, the is the simplest "flash tool" because it requires only an SD card and a key combination. Huawei pre-loads this mini-flasher into every P20 Lite’s boot ROM.
Confirm the update. The phone will reboot and initiate the flashing process. huawei p20 lite firmware flash tool
: Requires an unlocked bootloader. You can flash individual partition images (system, recovery, boot) using standard ADB and Fastboot commands. If your phone can still boot to recovery
If you have already unlocked your bootloader (officially or via paid services), you can use a patched version of fastboot . Standard fastboot flash will fail with "command not allowed." Instead, use tools like or HRT Team’s Fastboot mod which inject a custom fastboot binary that ignores partition locks. huawei p20 lite firmware flash tool