How to reset Coolpad Catalyst

1. Turn off the device.

2. Press and hold the Volume up button, then press and hold the Power button

at the same time until the phone turns on.

3. When the device powers on, release the Power button 

but continue to hold the Volume up button until the Recovery screen appears.

4. Use the Volume buttons to scroll to 'Wipe data / factory reset,'

then press the Power button to select it.

5. Scroll down to 'Yes -- erase all user data.' 

then press the Power button to select it.