Help me please, I've run out of ideas!
I can't receive data over the mobile phone network in any application. I've tried Facebook, Google and loads of others, they all say 'no data network connection'. Everything works fine when I'm connected via WiFi, it's just the mobile data that's the problem.
My APN settings are all correct (as shown at http://community.giffgaff.com/t5/giffgaff-Top-Tips/Definitive-APN-Settings-list/td-p/1279) and I can still send and receive phone calls, messages and picture messages.
I've not had an email saying I'm blocked and there's no service outage because my wifi dongle is still working.
I have 945Mb data left of a 1Gb allowance.
I'm using a Sony Xperia Z with the latest versions of Android, and I've 'hard reset' the thing.
Any ideas? Please help!
Your signal might be poor or maintenance checks might be being carried out in your area..check out your area via this link above..
Switch your phone off, then take battery out, then reboot your phone install all the settings and it should work