PM351 Android 11 User Manual
System Maintenance
77
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Factory data reset via recovery mode
If device works abnormal so does not turn on, try to perform factory data reset through Android
recovery mode.
1. Press and hold
power button
+
P2
(SOFT_RIGHT)
+
front scan
buttons simultaneously when
PM351 is turned off.
Numeric
Alpha-Numeric
2. After short vibration, release the power button
3. Using the keys below, select
Wipe data/factory reset
Move down / up
– Press P1
(SOFT_LEFT)
/ P2
(SOFT_RIGHT)
button
Select the menu
– Press power button or Enter key
4. After wiping the data, select
Reboot system now
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