Hard Reset HTC T828X (HTC Blackstone)
- Power button to switch off device.
- Next step is to press and hold this combination of keys: Volume Down + Power button + Enter button.
- Process of Master reset must be confirmed so press Volume Up, any other key will cancel.
- Done, handset is ready to work on.
Help! This doesn't work
Hard Reset will erase all of your data
All described operations you are doing at your own risk.