Huawei MediaPad T3 Guide De Démarrage Rapide page 96

Note: Remember the Google account your device last
logged in to.
During an untrusted factory settings restoration or
microSD card–based update, Google's anti-theft
mechanism requires you to enter the Google account your
device last logged in to on the startup navigation screen
for identity authentication. Your device can properly
power on only after the identity authentication passes.
Model: KOB-L09
902239_01