Invalid Usim in k800i

[GinnCorvus]

Hi

I have a k800i thats locked on 3, however when i insert a 3 sim (3G) its saying invalid usim?? Im fed up with 3 anyway so id like to unlock the phone.

This messagge because the phone has an USIM-LOCK (is not hardware lock but a network H3G lock, not removable with any tools). If you unlock the phone with Patch generator you can use other sim from other providers.

I have another unlocked k800i that came direct from the manufacturers, can i use this to gain the files???

Im in the Uk and the handset is CID 49 not 51.

You can't extract the firmware on Db2020. You must to have MAIN + FS + CP files to debrand and then unlock it.