I have an Iphone 4 (8GB) and I'm unable to send a text message (words or pictures) to 1 specific number. I took the IOS 7 and then 7.2 updates right when they came out. This problem did not occur before that but it also did not occur directly after either. It has only been the past 2 weeks. I have deleted the contact, rebooted phone, reset network settings, sent a text to just the #, added a 1 before the area code and sent another "test" text, called *228, option 2, had friend delete me from their address book (they are on an S4/AT&T), disabled imessage followed by sent another text, rebooted again (have actually done this about 10 times) sent another text, re-enabled imessage and sent again. Nothing worked. To add to the mystery, I receive their texts no problem (words and pictures). Please help.