I didn't know it turned it's self off or for how long. i would hear the "droid" sound when it came back on. now it shuts it's self off and i need to hold the power button 10 seconds to get it to turn back on. this problem started exactly one year into using the phone. it pretty much sounds like your droid maxx.. I have the droid maxx and it has shut off/powered off randomly three times already. once, the battery was fully charged and i was not using the phone. once the battery was at about 50-55% and i was on a social networking site and this last time i was in the middle of a phone call and the battery was at 30%.. Droid ultra & ultra maxx > phone randomly turns off second day in a row my phone (maxx) around 22 percent it randomly shuts off. after reboot just continues to act normal solved! go to solution. droid maxx 2 by motorola; droid bionic™ by motorola;.
Droid razr maxx shutting off randomly