It will not go past 87 %.  The message says it is done then I get another message right away that says Aircraft firmware update now?  click yes and it starts the cycle over again.....then it all starts again.  

You upgraded it via the Assistant 2 V1.0.7, right?
Please try to restart the aircraft, re-connect it to your PC and upgrade again.
You can also upgrade it through the DJI GO 4.
If that makes no sense, please upload the error message on the screen here, thanks.