My HTC Desire 10 Pro stuck at HTC download mode

[Android Central Question]

Volume up/down buttons not scrolling only the power button hence unable to reach recovery mode.
Kindly assist

 

[Rukbat]

Hold the power button down until the phone restarts. If it still restarts in download mode, start looking for the RUU file for that particular phone (country, carrier, etc.), because the system's gone, so you'll have to reinstall it.