My phone does that self rebooting, what i have found about this problem from the google only resolve is flash adroid sofware. People has sent their phones to motorola to get fixed this and fix has been reintalled sofware.
What i have trying to do this phone, I have unlocked root normal using tr, supersu, motopocalypse, when i flash with ap fastboot the recovery trwp or cwm it wont able to boot on custom recovery, i have done it as instructions says by flash custom recovery, power off, bootloader->recovery after min it starts to normal recovery.
I think this self rebooting is the cause of not success with the custom recovery ???