I finished unlocking the bootloader on my android, then I downgraded Google Play Service, then I reset the phone to factory default. After the reset, I was asked to set up the phone. However, in the last step the notification appears
Not signed in to use this phone, you first have to sign in to an owner's Google account in use on this phone when it was last reset. Because you haven't done so, you have to set up the phone again.
The setup can't be completed maybe because it can't log into a Google account because its Google service is uninstalled/deleted, I can't go into a setting because it's still in the stage of preparing the cellphone. I reset the Android again to the factory reset, but it didn't work and still like that. Please help.
I use ASUS Zen Fone Maxpro M1 OS Oreo (8.1)