For the last few weeks I've had trouble sending texts on my Xperia L1. Some would send fine, then sometimes they would queue for sending and then send after about an hour, but now they just won't send at all. I've tried all the trouble shooting tips and watched the YouTube vids etc but nothing is working. I've tried the good old switch it off then on again. I'm really fed up now as I can only text over WhatsApp and not all of my friends and family have WhatsApp. I just want to send a run of the mill text message. Any ideas of what's going on and advice would be much appreciated!