I tried everything i could just to upgrade k800i cid49 to cid52 but no luck..i reflash the main and fs but it wont upgrade to cid52...im using xs++ 3.1 and setool 1.11. my OS is windows 7 64bit...and i have a problem with far manager in win7 because it requires me for full installation..i dont know why..should i use win xp instead?