This trick is known to be working mostly on smart phones.
Remove the batteries
Plug the device to the AC charger without the battery
Press and hold the power button for 20 sec
Remove it from the charger' Press and hold the power button for 20 sec *again* (without the battery)
Put the battery back and try again and allow the device to charge for at least 5 min.
I'm not sure if this trick can work on security cameras.
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