So i tried doing a factory reset on the box. tested with kodi crashed during LAN playback. cleared data for kodi, re-installed. no addons just a fresh cleaned install sitting at the main menu of kodi. crashes.
Next, i wonder if its just kodi or everthing, so i tried the web browser. just sitting open reboots, google play store, randomly reboots..
So more or less with a factory reset box i have a whole shipment that randomly reboots from 20 minutes - 90 minutes of running. **Usually reboots, sometimes i get *current in use app* has closed, or PROCESS SYSTEM HAS STOPPED.
I tried to change the firmware but i think i used the firmware for the MXQ Pro (s905) not for the 905x and the box just glows red now

I would like to have a copy of openelec running on it, but i don't want to brick another box. The supplier of course is denying any issues with the box. saying "You are only complaint". the firmware is dated 20161022.
I have attached a log if anyone can help me identify what is causing the reboots, any help would be greatly appreciated.
EDIT:
To clarify, i don't think the device reboots in terms of power cycle, i think it just reloads the OS/UI
Also tried booting in safe mode and sitting idle in play store, UI reboots as well.