You may get an “accessory not supported” alert if you're using counterfeit accessories. To prevent this, make sure that the charging cable and accessories you're using to charge your iPhone with are MFi-certified, meaning they were made according to Apple's design standards. MFi means Made for iPhone, iPad, or iPad.
How do I fix this accessory is not supported?
How do I fix an “Accessory Not Supported” message on my device?
- Remove any debris from the charging port on your device and try again.
- Restart your device and try again.
- Update your device to the latest software version and try again (this is important!)
- Try using the same charging cable with a different power source.
Why does my phone say accessory not supported when I plug it in?
The “Accessory may not be supported” error on an iOS device is also found to appear due to damage to the accessory being used. So, you should ensure that the charging cable or the power adapter is in a good condition to charge the iPhone, at least physically.
