The message would appear if you were using an unauthorized wall charger or in poor contact, but even if you are using an original accessory, the error can also happen for the firmware problem with iOS.Īfter analysis, the causes of this problem may be the following:

Don't play the phone while the phone is charged with low power, otherwise the phone will be in a high load state.Ībout the error message 'This accessory may not be supported by device': Clean up the running program of the phone with high power consumption in the background in time.Ģ. There are too many programs running in the background of the phone, causing the phone to run at a high load and generate more heat.ġ. The charging speed will be faster when the phone power is low, the wall charger will output 9V high voltage, and the phone will generate heat because of the voltage converting process.Ģ. However, the main reasons for the heat are as follows:ġ. Q: Why does the phone get hot when it's charging?Ī: This is normal, because the phone will generate some heat when it is charging. You can log in to the official MFi Licensed Accessories and search our brand 'Ugreen' or product model number of this term to confirm. The USB C to lightning cable we sell is a MFi-certified Lightning cable. The certification test process is extremely demanding, with a pass rate of only 2%. It is the abbreviation of ‘Made for iPhone / iPod / iPad’. MFi is a kind of express license for external accessories produced by authorized accessory manufacturers.

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