I just stopped in to post that this thread saved my radio too! At first, I thought my USB cable to my Android phone was going bad as the radio started to drop my Android Auto connection frequently. Then a couple of weeks later, it started glitching out bad and after a few minutes I got the Software Error message. Found this post and it saved me!
I too followed Datsuns post on page 2 and cut a slot with a dremel. I used this Youtube video from Mannix C to remove the faceplate and pull down the mechanism to expose where I needed to cut. The issue I struggled with most was removing the face
