What should I do if the iphone prompts "this cable or accessory has not been certified"?

Cause analysis

I. Check whether the data line of iOS7 and later versions is original

2. The data line interface is dirty.

3. The data cable is indeed broken

Solution

If it is the problem above, we can change the original line. If it is just a charge, we can remove it and then directly connect it.

If the above method has been tried and still does not work, the temporary solution is to first shut down and charge the iPhone.

Then we charge the iPhone again, because when the system is turned off, it cannot detect or stop us from charging.