Phone SIM card problem
1. Let's see if the phone card is loose, we can take it out and try it on.
2. If the first step is no way we can try to change a new phone card to try Ah, this can also be solved.
3. If there is no problem we can try it, to move to change a phone card oh.
Restore your phone settings
1. We install an itunes software on our computer, then we connect the Apple phone with the computer, as shown in the following image.
2. After the itunes software connection is successful, we'll click "Back Up Now" in itunes and then we'll back up to the designated location.
3. Okay, after the data is backed up, we'll click "Settings" in the iphone as shown in the following image.
4. Click "General" in the settings
5. In general, click "Restore" to enter.
6. Then we find "erase all content and Settings"
7. If the phone has a password set, please enter the password to continue.
8. Finally, we'll click on "Erase the IPhone", as shown in the following figure.
9 If there's still no signal on the phone, you're a tragedy. We can try to call Apple on the official phone and ask for a reason to check it out.
Friendly Tips
There are a number of reasons for the problem with the Apple phone signal, if the above method is still not to let us see if there is no signal, or your cell phone escape, this may cause this problem oh, and contract machine We change other cards may also have no signal oh.