hello i have a di1000t stuck on cr1 in telewest land ive also got a di1000t on cr3 without an update mod done to it, can i take the sim from the cr3 box put it in the cr1 box let it update to cr3 then put the original sims back in without doing any damage to either box, i would like both boxes on cr3 for when vod comes in tia nick.........