I am having problems with my XT phone. It is the c510a Sony E.

I switch my phone off at night and switch it back on in the morning. It roams for a service and eventually says inactive sim card. I remove the battery and sim card and insert then back in. I switch the phone and sometimes it will find the service, other times it won't. it can take up to 6 or 7 attempts of this process before i get a service

I don't live in a rural area where the XT network is patchy.

My next issue is that my internet won't work (when i have an active sim). I hit the 't-world button' and proceed to wait for the internet to load. I get a message on the screen saying "communication failure, try again" I have credit on my phone so that is not the issue. I was able to browse the internet 5 hours ago but not now

My final issue is a smaller one, but still an issue. my phone is facebook accessable, well should be, but everytime i click on the facebook button my phone jams up. It will stay like this for up to 10 minutes before it closes its self.

I am seeking advice from here before  taking it inot a telecom store.

Any help would be great

Cheers.