Samsung GT-B7610 User Manual page 24

Reset the device
If your device freezes or hangs, you may
need to close programs or reset the
device to regain functionality. If your
device is still responsive but a program
is frozen, close the program via Task
Manager. p. 76
If your device is frozen and
unresponsive, use a small object, such
as a toothpick, to press the reset
button.
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