For CID upgrade, you can use Xs++ 3.1, also for flashing those two files; When you uconnect the phone to XS++, it will ask if you want to upgrade the CID, you clcick YES and it will do the trick, after that you can proceed to flash the phone.


About customization, you should select saame as the FS file you are going to flash, for example CENT_EUROPE.

ANd I would also want to know if there is a bbetter media player for the K800, is the k810 player different than the k800 plaayer ?

cya