Zte BLADE A506 Quick Start Manual page 10

NOTE:
If the battery is extremely low, you may be
unable to power on the phone even when it
is being charged. In this case, try again after
charging the phone for at least 0 minutes.
Contact the customer service if you still cannot
power on the phone after prolonged charging.
NOTE:
If the screen freezes or takes too long to
respond, try pressing and holding the Power
key for about 0 seconds to restart the phone.
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