PM451 Android 9.0 User Manual
51
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System Maintenance
Factory Data Reset via Recovery mode
If you cannot turn on the device, try the following steps to do factory data reset using Android
recovery mode.
1. Press and hold
SOFT_RIGHT
and
Fn
in the sequence of keys when PM451 turned off.
2. After short vibration, release the keys.
3. Using the keys below, select
Wipe data/factory reset
Move down
– any keys except Enter key and Power button
Select the menu
– Enter key or Power button
4. After wiping the data, select
Reboot system now
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