Hi there!

Recently, I've purchased a genuine DM520. The problem with it is that it randomly crashes (black screen, blue LED stays on, cannot reach it on network). The only thing I can do is to use the back switch, OFF and ON. It can be frustrating at times. Sometimes the box in up for 12 hours, sometimes only for a few minutes and everything starts over.

What I have tried so far:
* Flashed all the images available
* Flashed the latest rescue loader
* Replaced HDMI cable and changed the HDMI port on TV

Has anybody got a clue what's wrong with the box? BTW, I checked the motherboard and it's V4 and instead of a SIM card, I've got a security chip.

Any help would be appreciated.