First, You need download the files:
Stock rom your device.
A combination file your device
File: fix pls call me-by-frpfile.com.zip
Magisk-v14.0
twrp-3.1.1-0-greatly.img
Ok! Let’s Proceed with Steps :
If your phone is FRP ON, you must bypass it. There are many ways to unlock FRP. The easy way to bypass is to flash combination file after run tool bypass via ADB cmd and finally flash stock rom with select file HOME-CSC …
If your device is FRP OFF:
Flash combination file, In setting you to turn on developer mode and open OEM unlock option (In rom combination the option OEM unlock is always showing)
When your phone FRP is OFF and OEM Unlock is ON, you flash stock rom full file.
Root phone.
Install TWRP
Flash file fix pls call me-by-frpfile.com.zip via TWRP and your problem is solved !!!!
Very Easy!!!