yes I did use HxD and I tried all data types including Hex values.No luck. Then I flashed Khenglish's 6430oc.bin and installed xtu but now I am still not unlocked. Later I used HxD and open 6430oc and located 00 00 FF FF 00 00 FF FF 18 01 08, went back to see what i have in my untouched original and it was almost the same, i mean instead of string 00 00 0B 0A 00 00 0D 0C 18 01 08, I had 00 00 FF FF 00 00 FF FF 18 01 FF I changed FF to 08 and saved it as editimage.bin I my question is; should i revert back to original image.bin and continue from scratch or how should I proceed? I still have no manual tuning on xtu after reinstalling.