Last week my xbox did an update and it failed around 74%. The only way I could complete the update was to unplug the power brick for 30 seconds and it was okay. The next day I turned it on and it did the exact same thing, again I repeated the same step as the previous day and it was working after. Ever since then some days my xbox has worked fine as always and then others it will stop responding to the controller after around 10 seconds or maybe 2-3 button presses and the only way thing i could do was force restart it. I can't reset to factory as it never works long enough for me to select the option. I contacted support and they referred me here as I believe the latest update was one through the preview club programme. I know being a preview tester comes with this risk but I refuse to believe I should have to fork out for a new xbox or an expensive repair as a result of preventing these issues making it to the live update. My gamer tag is xoxjamesxox please advise on what I should do as I rely heavily on my xbox and not being able to game/watch entertainment is a huge problem for me.