Recently I've been having an issue with SMS messaging on my iPhone 4S. The progress bar along the top will fill to about 80% full, and then stop for a good minute/minute and a half. At this point the red '!' icon appears, to indicate the message has not been sent.
Tapping the '!', and then tapping 'Try Again' does nothing, and I'm instantly presented with the red '!' icon again. It happens so quickly that it appears the iPhone didn't even attempt to send the message again.
This has been happening on and off since I got my iPhone in October, but recently the problem has been getting much worse. I've never had an issue with O2 signal before. Has anyone else had this problem, and if so, does anyone know a way to rectify this issue?
The image below shows a screenshot of the issue:
Thanks in advance,
try turning 3g off and see what happens.
if that cures it it could be 3g congestion.
what resets have you done?
Thanks for your prompt reply. I turned off 3G and text messages seemed to be sending more consistently. It's hard to tell if this is the cause as text messages over 3G were also sending consistently at the time.
I've restarted the iPhone numerous times and I've updated iOS to the latest version (iOS 5.1).
have you tried a reset network settings ?
a full restore is usually a last resort
settings> general> reset> in there is the option
Exactly the same issues here, I got my 4s in January and it started happening soon after, so I logged it with O2 and was advised to do a sim swap. Did that, but recently it has been getting worse, so I went and got another sim today, but was advised if it happens again, it's not a sim/network issue, it's the phone.
Check your sim card isn't scratched (if it is get a sim swap), and wipe it gently with a dry cloth if it isn't and carefully replace it. If it still happens, you might need to speak to Apple about getting a replacement.
Luckily I live near both an O2 shop and an Apple store so I've chatted to representatives of both today about it.