Locked k800i plz help me.

[simox]

I just was kidding :)
The problem is that missing one step form that tutorial. Here is the missing step(from How to apply patches with SETool2 Lite V1.11 tutorial):

You must do this one time! After that you will skip all this process!!!
1. Drag the MAIN file (.mbn) that you have in your phone on to qamaker.exe From the qamaker folder that comes whith SETool2 Lite 1.11; this will create a vkp file;
2. The vkp file created in step 1 put it in to MISC FILES;
3. Click bypass db2020;
4. Add the main FW (.mbn) file (like you would like to flash it);
5. Press FLASH button;
6. Follow the instructions given by setool2 lite. Be carrefull! At one moment you will belive that nothing happens and the status windows is not changing! Not remove the CABLE! Wait until "ELAPSED x SECONDS" appears in status window.

This process will take some time, about 10-15 minutes or more

So, first follow these instructions, then do it again what you did.