Remove SIM-lock patch generator

[simox]

I also found a comment from yourself Unlocking W850i [Firmware Version: R1ED001] - Top Sony Forums

Well, I cannot remember every post of mine :D

Does that also apply to me which one should I use?

Don't know if that firmware was corrected. Try to generate an unlock patch with SIMLockPatchGen.exe, and if you get that Firmware extraction failed! error, then it is corrupted. If it is corrupted then use the W850_R1KG001_MAIN_GENERIC_CY_RED52.mbn.

Also I wondering if I could make my own from my phone

It is not possible...