2. Overheating and frozen problems: removable battery phones win

Back in the days when most mobiles are removable battery phones, we all remember the instruction “In case of any heating problem, remove your battery”. This way, you can let the power cell chill down a bit before having it work again. In addition, when your mobile falls into to “force to stop” or “frozen” states, which happens quite frequently, casually removing the battery can save the day. With a non-removable machine, although you can switch off and restart, it is far less effective than taking out the cell.

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