For 24/7 support message our team of experts via the My Optus app.
Upgraded mobile, phone saying not registered on network
Can you give us more information, did you upgrade the handset from an Optus store?
Upgraded my phone to Galaxy A5 at Optus today. I get a Not registered on network message and can't use my phone. Can someone help?
Sorry to hear that. Have you tried switching your phone off and back on again?