Hi Jack,
I'm not sure how your 20k got into this mode. Is it running a non-GA version of software (i.e. a "private" or customer specific build)?
If yes, then please look to upgrade to a fully supported version of EXOS. You also may have trouble disabling pacman without actually being in debug-mode.
I would suggest reaching out to GTAC so they can provide the correct set of instructions for your situation.
-Drew