xulos: I checked your problem. I used k550_R1JD001_MAIN_GENERIC_LI_RED52.mbn and it works just fine. So I have no idea what is wrong... Do you use the latest version v2.1?
Here is the patch:
Code:;k550 SW-R1JD001 ;Remove SIM-Lock ;(c) IronMaster ;(p) simox SIM_lock_remover patch generator v2.1 +44140000 4DBF68: 30B5041C00231A1C111C1C20A4F4 F0B505213A22ABF421FA0020F0BD