P4 Can't Load Firmware Fix

My P4 Standard got stuck whenever I tried to upgrade, downgrade or re-flash
the firmware and Assistant 2 would always get stuck at 0% and say, "Failed to
enter upgrade mode".
Support told me the usual, that I should just leave the bird on and hope
that it would get itself out of the boot loop. This never worked after a couple
batteries worth of run time.

I then decided to take thing into my own hands and downloaded the DJI Assistant.

When I got to the error message in the NLD Assistant 2 I left the drone connected
and exited the application and immediately started the DJI Assistant and ran the
same firmware that happens to be the same which is compatible with NLD (02.00.0700).
Then when it stopped short of completing I exited that program and immediately
started the NLD Assistant 2 again and this time it completed a full upgrade!

So as hopeful as this may sound, it was only done once and was a P4 standard and
not then pro or Mavic which I understand are having some of the same issues
but not exactly the same.

Anyone who wants to know anything beyond what I described here in this brief
description can ask me and I will try to answer the best I can.
I took as many screen shots of it as I could after I realized it was actually
looking like it was working.  Glad to say I got my P4 back in the air again!


And then after some back and forth....

Thank You for your help, I've taking the same problem with my P4 and I follow your guide and work really good :D!!!!
THANK YOU!!!!

Good morning how are you, I've been trying to change the altitude in my phantom 4 pro from 500 to 1000 or 2000 meter and I can't. When ever I try to do it it shows that the Value failed to be recognized when trying to change limit height from 500 meters to more , I go the bird map, but how can I apply that to my drone? Please help thanks