What is the fever under the camera at the top of the phone when the iphone6 plus of the Bank of China is charging? Is there anything wrong with the machine? open

If it is used and charged at the same time, it will be hotter. It's normal to be lukewarm and slightly hot. If it's particularly hot, go for an after-sales test. Besides, the reason why you said that the flight mode is not hot may be that all wireless modules are turned off in the flight mode, at least the cell phone signal and cellular data are turned off (wifi can be turned on manually), so the overall power consumption of the mobile phone will be lower, the charging will be faster, and the temperature will be lower, but it is not particularly outrageous.