I'm almost 100% positive you CAN unlock and debrand a K800i with Setool3, but you HAVE (for some reason I don't know) to upgrade it to CID52 first.

Here is the video :
http://www.setool.net/video/index.ph...e%20Unlock.rar

The problem (for me) is : I don't have setool3 ... :(


if anyone can help...