step 1 flash full combination file or boot file from combination
step 2- once the phone boot to the factory binary screen open click tool and go to FRP removal and press FRP removal
you will get this confirmation
after this step do a factory reset from settings and flash original firmware.
this function is free
step 2- once the phone boot to the factory binary screen open click tool and go to FRP removal and press FRP removal
you will get this confirmation

after this step do a factory reset from settings and flash original firmware.
this function is free