It will be. Charring head burning will affect fast charging, this is most of an attempt, because in the case of charring, it is generally the circuit short circuit caused by the charger failure, burning the internal device, so it will emit a burnt taste, in this case the charger is already broken, and then continue to use, it will affect the charging of the charging device, and even lead to failure, so it is recommended to replace it in time.
Burning will definitely affect the flash, and under normal circumstances, there will be no burning unless there is some malfunction.