FRP or Factory Reset Protection is a protection against performing a wipe data factory reset from the recovery level and uploading the system from scratch will not reset this protection. The status of this security is stored on the Google server (probably) and in the phone on a special partition which the system reinstallation does not start.
When you lose your account, you must do it. To remedy this, the APK Bypass FRP app is available in Android devices mode to bypass Google verification.
Tested Device List: Samsung:- duos, J7, J2, J7 prime, J5, J1, Galaxy core 2
Moto:- G3, E, G4 play, E 4+, M, G 5S+, G Turbo, Turbo
Jio Phone:- Jio LYF Phone, Jio keypad phone
Nokia:- 105, 130, C2, 215, 225, Asha, C5, 150
Intex:- aqua, Aqua star2, Aqua power plus, aqua Y2
Lenovo:- Z2+, Vibe K5, A2010, K5, Vibe, A6600, A1000
LG:- aristo, stylo 3, K10, K20, Stylo 2, G6, G4, G5, G20, K20 Plus
ZTE:- Sonata 3, Z982, Z835, Blade, Z833, N9560, Zmax …