How to enter HTC Desire 820 Recovery Mode, Hard reset, BootLoader Mode and Fastboot Mode
Recovery Mode
- Turn off the device
- Press and hold Volume Down key + Power Key for about 10 seconds
- Release all key when you see three Android Logo appear
- Press Volume Down key to select Recovery menu
- Use Power key to Confirm or Execute Menu
Hard reset HTC Desire 820
- Turn off the device
- Press and hold Volume Down key + Power Key for about 10 seconds
- Release all key when you see three Android Logo appear
- Press Volume Down key to select FACTORY RESET menu
- Use Power key to Confirm
Bootloader Mode
- Turn off the device
- Press and hold Volume Down key + Power Key for about 10 seconds
- Release all key when you see three Android Logo appear
- Now You are in Bootloader Mode
Fastboot Mode
- In Bootloader Mode use Volume Down to select Fastboot
- use Power key to confirm
- Now you are in Fastboot Mode
Warning! If you perform a hard reset, make sure to back up important data.