In conclusion, you now have a rooted Huawei P8 Lite ALE-L21 smartphone with full system access. Take care with your newly claimed power and always check what apps you are granting root permissions. One application that not many rooted users will know about these days is the Servicely application. Huawei P8 Lite Stock Firmware (flash file) The Flash File will help you to Upgrade, Downgrade, or re-install the Stock Firmware (OS) on your Mobile Device. The Flash File (ROM) also helps you to repair the Mobile device, if it is facing any Software Issue, Bootloop Issue, IMEI Issue, or Dead Issue.