can anyone help please.ive just bought a new iphone as my old one was dropped by my dear wife i have put a turbo sim in it and it seemed fine for a day but noticed it kept coming up with no sim,wrong network or something to that description.now it works great making calls but anyone ringing me gets my answerphone also i get txts spasmodically even though ivegot full signal..then half way through the day it comes up again with no sim again so i put in airplane mode a couple of times and it works again...can anybody shed any light please as i feel like ive spent £350 for nowt...
