Sometimes I don't receive text messages that people send me. I turn on airplane mode a lot, but they seem to never come even when airplane mode is switched off. Sometimes at the very end of the day a whole bunch will arrive all at the same time. Any ideas?
Like with most computing devices.. whether Pc or Smart devices... it's good to simply do a reboot.. seems to help.
On another note... it could be that you need to update your "prl"(preferred roaming list) through your carrier. I'm on Verizon.. and all I have to do is dial *228 (the STAR key then 228 then SEND) and follow the voice prompts.