Hi, I’ve recently returned from overseas. My regular Optus sim is working with phone reception but the mobile Data (3G or 4g) is not working. Can you please assist reconnecting it. Do I reset the APN and if so, what are the passwords, etc?
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This sometimes happens if a customer uses the local network whilst overseas.
It's likely you have that network's profile in your settings and it needs to be deleted.
It should be in the APN settings, if you still need assistance please advise the make/model of your phone.