I purchased my iPhone 5 in UK but have 2 SIM cards- an Irish one and UK. I can't seem to text some UK numbers from the Irish Sim even though I've inserted prefix.

I bought an iPhone 5 in the UK but want to use a UK and an Irish sim. However the Irish sim won't allow me to text to certain numbers in the UK ie those on blackberry or samsungs. Any ideas?

4-5 hours of battery life with heavy usage sounds about right.  Modify your usage habits or charge your iPhone more frequently.
What did your wireless carrier say about your texting issue?
Your iPad has a larger and stronger wi-fi antenna.  Your situation doesn't seem abnormal.
Train yourself to remember to turn your wi-fi on/off as needed.  Set up a location based Reminder if that will help you.
Your cellular data connection issue combined with your reported texting issue suggests there is a problem on the wireless carrier side.  Talk to them.
Cheers!

Similar Messages

Maybe you are looking for