forfriends, If you want to take a chance with the illegal stolen software, have at it. You won't get help with it here. If you brick your device (which has happened with the MFI software many times), you'll be on your own.
You initial post didn't say anything about wanting to wipe the device. But you can do that as well with JLCmder... and remove the IT Policy separately as described in the link. However, just a "wipe" will not always remove the IT Policy as your PC may contain the policy and will be put back on the device if you aren't aware.
Heh. That made me smile a little bit. How did you guys find out in the first place? :P
As for it being the third time, it wasn't made clear to me that it is *impossible* to completely remove the IT policy like it is for models running a newer OS. But thanks anyway, I guess I'll follow through with method #2.