Device Help Apple iPhone 4 (iOS4) Messaging
Apple iPhone 4 (iOS4)

Apple iPhone 4 (iOS4)

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Using my mobile phone as Wi-Fi Hotspot

Ending active applications on my mobile phone

Setting date and time for my mobile phone

Turning my mobile phone PIN on or off

Updating the software on my mobile phone

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Getting started

Basic functions

Calls and voicemail

Messaging

Apps and media

Connectivity

I can't send and receive SMS

Back to Messaging
If you can't send and receive SMS, follow these instructions to solve the problem.
We found 2 possible solutions to your problem. Click Start guide to see the solutions.
Start guide
There's an error at the receiving end
The SMS is written incorrectly

Can you make a voice call?

It's important first to find out if you can make a voice call. If you can't make a voice call, you need to solve this problem. By solving this problem you'll most likely solve your problem with sending and receiving SMS.

No

Video guides

Issue: Slow Mobile Internet on iPhone Issue: Can't Use Mobile Data with iPhone Issue: Can't Make or Receive Calls with iPhone Issue: Slow WiFi on iPhone Issue: Can't Connect to WiFi with iPhone

Media guides

Clean up and Speed up your Smartphone Can't make or receive calls from your Smartphone? Can't use mobile data on your Smartphone? Can't connect to WiFi on your Smartphone? Slow mobile internet on your Smartphone? Slow WiFi connection on your Smartphone? Keeping your Smartphone Safe