When your device is not working properly, you can do factory reset to recover your device.

Factory reset will erase all data from your device's internal storage, so backup important user data before doing factory reset.


APPLIES TO

PM451


How to Factory Reset PM451

  • If you can turn on the device and use the Settings app,

Navigate to Settings > System > Advanced > Reset options

Tap Erase all data (factory reset)

After being aware that factory reset will erase all data from the internal storage, Tap RESET PHONE

Tap ERASE EVERYTHING to start the factory reset process




  • If you cannot turn on the device, 

Press and hold SOFT_RIGHT and Fn in the sequence of keys when PM451 is turned off

(If the device is blocked while booting, press the power button more than 7 seconds to force to restart, and then press the above key sequence)

Refer to below image to figure out the key sequence by keypad type

NumericFucntion NumericAlpha Numeric

After short vibration, release the keys

Now your device is in Android recovery mode

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

After wiping the data, select Reboot system now



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