Hello,
I have the same machine MPPS v12 works great, read it in 45min and written in 1min.
If you do not want to dispose of during that minute, maybe first make a backup BDM, however, in the worst case scenario in the case of a write lock, it is necessary to read the flash BDM and rebuild the file (possibility? remote but to consider) and rewrite it in the BDM.
That HW and SW do you have?
If you need more ask me as well!
123alexs