Hi, I recently bought an Minix X5 Mini (after using X7 as well) With the stock firmware (188.8.131.52) I noticed that it freezes from time to time. Apparantly the device gets quite hot while playing (local or streaming) videos. This happened once in a week. So I flashed it and installed the latest KitKat firmware. Now it freezes after 1 or 2 hours... I tried to put it back to the older version, but I can't connect it anymore to the RKBatchTool. Not with the little button on the backside while connecting the usb and not with the software way in the android settings. Any help would be appreciated!