After more playing around I realised it was the charger at fault. you need a 5V 2A charger . Most USB chargers for mobiles are 0.5A - 0.8A - 1A if you dont it will crash.
Also make sure if you have a charger with a 2 pin plug that the shaving adapter fuse is a min of 2A.
So I then borrowed the older MK802 off a friend and flashed it up and ran a MK808 at the side.
********* WARNING*************
If you are like me and are looking for a dedicated football streamer tv gizmo then please read:-
I found the display res on the MK808 defaults and makes the picture stretched.I treid all the different display settings and all's they did was lower the pixel rate and don't alter the actual size of the screen. I have done 2 comparison vid's to highlight what I mean. I have tried over 6 different flashes on the MK808 some claiming to have fixed the issue but non do.
If you notice in my vids ADMCsport isnt stretched on the MK802 which leads to a far better picture , its like when you zoom in and the pixels are bigger.
the MK808 has an option to change the res and alter the size on screen but no flashes do this on the MK808.
I ran both on ethernet to USB adapters with the MK808 more stable and faster. If anyone knows how to solve the issue with the screen stretch on the MK808 please let us know. And I know its not the TV as it does it on 2 other HD tv's.
I'm not on my own , the stretched screen problem is mentioned a few others who suffer this with some programs and playback.
My opinion ? for all the apps and stuff and faster speed ther MK808 , , , for a straight footy streamer for ADMC the MK802 hands down until the screen stretch is solved.
here are the 2 vids , you cant really tell on the video's but the MK80 2is far less pixelated and less choppy.
MK808.rar = MK808
MK802.rar = MK802