Millet mobile phone low temperature shutdown reminder can not be charged, not necessarily a battery problem. It may be that the temperature of the phone is too low, and the battery activity is affected, resulting in a failure to charge. This situation can be solved in the following ways:
Put the phone in a warm environment and wait for a period of time before trying to charge it.
Using a low-voltage charger to activate the battery, such as connecting the other end of the charging cable to the charging bank for 30 minutes, can end the battery sleep.
If the above methods do not solve the problem, you can try to remove the battery, connect the charging cable to the jack of the Xiaomi phone, and then open the rear cover of the Xiaomi phone to remove the battery (do not unplug the data cable), when the Xiaomi screen enters the startup animation, put the battery back in place, you can recharge.
If the problem still exists, it is recommended to contact Xiaomi's official after-sales service or send the phone to the maintenance center for testing and repair.