How to factory reset SENDO M551? How to wipe all data in SENDO M551? How to bypass screen lock in SENDO M551?
How to restore defaults in SENDO M551?
The following tutorial shows all method of master reset SENDO M551. Check out how to accomplish Hard Reset by hardware keys and Vendor settings. As a result your SENDO M551 will be as new and your core will run faster.
1. Turn off your handset.
2. Afterwards please plug in charger to your phone.
3. Then hold and press 5 key + Power button.
4. Release holded keys, when you see a green tick appears