回答“iPhone says "This accessory may not be supported"”When you see "this accessory may not be supported" appears in your iPhone, you can try the following steps to fix your iPhone. 1. Try the other original charging cable for your iOS device. 2. Clean out the pocket lint or debris from the charging port. 3. Plug your charger in. When you get the error message hold your finger on the dismiss button and pull your charger out. While still applying pressure to the screen, plug your charger back in and it should work. 4. Turn off the device with the Lightning plug attached and then restart it. 5. Dismiss or ignore the message and then turn on the Airplane mode in your device. Turn off your iPhone and wait for 1 minute and turn it on again.