Hi.

I just made a few quick checks and the route for this file in my device is in folder "/usr/lib/AccountSetup".
I would also add that my device is flashed in openmode although I'm not sure if this is relevant in this case or not.
Anyway, Could you try to rename the file - wherever it is - and see if it works as expected?. You can always undo it if it doesn't.

Regards.