Apple iPhone 4 (iOS4)

Apple iPhone 4

iOS5 iOS4
If you don’t know your device’s software version, you can check it by selecting Settings > General > About.

How to guides

View SIM lock status

Your phone might be SIM locked to a network operator. Follow these instructions to find out your SIM lock status.

Step 1 of 1

View SIM lock status

Insert a SIM from another operator and turn on your phone.
If your phone is SIM locked, a message will appear on the display.

Click here for information on how to insert a SIM.

1. View SIM lock status

Insert a SIM from another operator and turn on your phone.
If your phone is SIM locked, a message will appear on the display.
Click here for information on how to insert a SIM.

Would you like

Information for your {0}