Moto G4 plus No SIM card – No service error after android 8.1.0 update Ask a Question September 10, 2020 Android ForumsLeave a Comment on Moto G4 plus No SIM card – No service error after android 8.1.0 update Upgraded to android 8.1.0 (oreo) through Motorola rescue and smart assistant tool. Now No SIM card – No service showing on home screen. Both the SIM slots greyed out in settings. IMEI number showing correctly in about phone option. Need help! Source Sharing is caring!