Tap RESET PHONE again to confirm.
Tap Factory data reset .
Open the Settings app.
This is Factory Reset Protection . It's a security feature. You must enter the previous Google account (email and password) that was used on the phone before the reset. If you don't know it, you cannot bypass this legally. How to Hard Reset HUAWEI L21 P9 Lite
If your Huawei P9 Lite L21 has a Google account on it, you must know that password after the reset, or the phone will lock itself. This is an anti-theft feature. Tap RESET PHONE again to confirm
Tap RESET PHONE again to confirm.
Tap Factory data reset .
Open the Settings app.
This is Factory Reset Protection . It's a security feature. You must enter the previous Google account (email and password) that was used on the phone before the reset. If you don't know it, you cannot bypass this legally.
If your Huawei P9 Lite L21 has a Google account on it, you must know that password after the reset, or the phone will lock itself. This is an anti-theft feature.