How to safely shut down or force shut down HTC devices

HTC First HTC First
HTC Desire 600 dual sim HTC Desire 600 dual sim
HTC Desire 200 HTC Desire 200
HTC Butterfly S HTC Butterfly S
HTC Desire Q HTC Desire Q
HTC Desire P HTC Desire P
HTC Desire L HTC Desire L
HTC One mini HTC One mini
HTC Desire 500 HTC Desire 500
HTC Desire 601 HTC Desire 601
HTC Desire 300 HTC Desire 300
HTC One Max HTC One Max
HTC Desire 501 HTC Desire 501
HTC Desire 601 dual sim HTC Desire 601 dual sim
HTC Desire 700 dual sim HTC Desire 700 dual sim
HTC Desire 700 HTC Desire 700
HTC Desire 501 dual sim HTC Desire 501 dual sim
HTC Desire 610 HTC Desire 610
HTC Desire 816 HTC Desire 816
HTC Desire 816 dual sim HTC Desire 816 dual sim