K800i Debranding / Flashing problem & updating the camera

[trimesh]

It sounds like your phone has had quite a few things done to it - it I was you, I would do a complete reflash on it so that you know you are starting from a sensible position:

K800_R8BF003_MAIN_GENERIC_WI_RED53 <- Main Firmware
K800_R8BF003_FS_EUROPE_2_RED53 <- EUROPE_2 filesystem
HB1-06_Generic_CDA102568_11_R4A_GENERIC_EUROPE_2 <- EUROPE2 custpack

If you're in the UK, you might prefer to use this custpack:

K800i_CDA102511_153_R1A_Generic_Trade_UK_United_Ki ngdom <- UK Generic custpack

Just start up FAR manager, run jdflasher, select "oflash" and copy the main and fs files to the phone, then reconnect, select "ofs" and copy the contents of the custpack to the filesystem so that everything ends up in /tpa/preset/custom.