Region Code Changing Error - Help!

[ajninhsiri]

I have only changed the region code of my DVD player twice before, so technically I can change it another two times, but when I try to change it now a message pops up saying
"There was a problem changing the drive region code.
Error -70001"

What does this mean and how can I fix it?

 

[wattsj]

I've got exactly the same issue. I've also logged this with Applecare and they simply can't help me. Mine is now stuck on Region 1 and although it says I have 1 more chance to change it back to region 2 it fails every time with the Error-70001.

 

[JediMeister]

Check this out: https://forums.macrumors.com/threads/282890/
and the last post of http://forum.rpc1.org/viewtopic.php?f=30&t=9453