There are lots of threads with similar titles to this, but I have tried all of the common solutions (manual roam, factory reset) and nothing works.
I only registered with giffgaff lately and everything was working fine for the first few days.
Then, Saturday morning, I lost service on my Samsung Galaxy S3. I still had bars but my phone said emergency calls only and I have not received any texts/calls since. My internet was still working I think (not Wifi, my mobile data still worked).
I assumed this was related to the service issues O2 were having, but still today I have had no service on my S3 since Saturday.
But when I put my giffgaff sim card in my Xperia arc it worked fine and I received the texts that had been delivered while the sim was in the S3.
I have tried restarting, performing a factory reset, setting up the APNs again, turning on/off the phones proximity sensor but still have no luck. I have also checked the phones IMEI in case it had for some reason been wrongly blocked, and it has not.
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Yes I have tried the giffgaffAPN app, even though I thought I read somewhere that it doesn't work on ICS.
I also thought that the APN was only for internet and mms anyway, I thought I should receive texts and calls regardless?
I've tried contacting an agent, no reply yet so thought I'd try here.
I bought the phone in June or July and it worked fine previously on Three network. I've been using it for over 3 months.
Switched to giffgaff, everything worked, then suddenly just stopped.
I will try deleting the proxy numbers from the APN - so am I wrong in thinking that APN is only related to data and mms?
'Use packet data' is selected.
I'll try the Tweakker as well.