Hard reset Symphony V155 Option 1
1. Go to Settings
2. Click on the menu About Phone
3. Next item Storage
4. Then click on Factory data reset
5. Mark opposite Factory Reset and Format disk
6. Click on Start cleaning
7. Reset will complete after Symphony V155 restart.
Hard reset Symphony V155 Option 2
1. Need to turn off the smartphone Symphony V155
2. Press Volume Up + Turn on for a few seconds
3. Stop pressing the buttons when we see the brand logo on the display
4. Click Clear Data
5. Click on Start
6. The reset process will end after Symphony V155 restart.
Attention!
To fully perform a complete reset of Symphony V155, a battery charge of about 80% is required.
When the reset is completed, all personal applications and data installed in the memory Symphony V155 will be erased.