Does it in continues loop of reboot?? If its reboot within couple of minute than ur problm is same like mine..i found out my hotspot wifi did not work anymore..i try to on the hotspot..but error happen..its does not on..even after reboot again still problm...only solution is to shut it down n let it for couple of hour before restart it back..
but this problm is still there after few hours my phone started to reboot again...
My phone is unroot..also nothing change..
Already done factory reset..still same problem..might be firmware issue...
Sent from my HTC One using xda app-developers app
HTC HD2, HTC Desire, HTC DHD, LG O2X, GT-P1000, HTC Sensation, HTC Sensation XE, GT-N7000, GT-N8000, GT-7100