I did everything up to step 8 correctly (I assume) using a CID53 K800 and installing:

K800_R8BF003_MAIN_GENERIC_WI_RED53
K800_R8BF003_FS_EUROPE_1_RED53

and when i go to run executor.b, i still get "insert sim card" or insert correct sim card". What am i doing wrong?

I just want to unlock the phone, i used SUES last year and have had a dead phone for a year now.