I bought a Xiaomi cell phone and do all stuff to get rid of the following problem: random restart. I installed all miui versions and wipe all the phone and replaced the battery and i dont know what to do now. When i go to some place with no signal (an elevator, for example) the phone reboots. Even with 100% battery, the phone reboots and the battery reduced to lower level (10%)...there isnt any information about this problem and im very disapointing about this phone. If its a hardware problem, is there anything i can do to solve this? The official xiaomi forum in chinese is a mess...damn chinese stuff... Please, help!!!!!!!