I am having same problem, It is keep freezing after 5-10 minutes uses (Channel keep playing but unable to change channel or move back). I observed also box get quit hot from the bottom at center part only.One more thing i found in my box i tried to play video from already saved in USB and i could not see the video but the audio was good. I have tried to update firmware by using USB but still same any idea/help would be appreciated. Firm ware version: 2.20.09-r4. I read a lot of comment regarding downgrade firmware. But in my mag box does not show option to choose older version, possibly due to i bought recently and never ever installed any firmware before.