How to factory reset TEXET TM-5570? How to wipe all data in TEXET TM-5570? How to bypass screen lock in TEXET TM-5570? How to restore defaults in TEXET TM-5570?
The following tutorial shows all method of master reset TEXET TM-5570. Check out how to accomplish hard reset by hardware keys and Android 6.0 Marshmallow settings. As a result your TEXET TM-5570 will be as new and your Spreadtrum SC7731C core will run faster.
Texet TM-7846 Hard Reset (сброс настроек) - video
Hard Reset will erase all of your data
All described operations you are doing at your own risk.