This switch was configured and tested before being deployed. It came with v5.6 and to get it to the latest release of 5.10 I had to apply intermediate diags and images.
Aside from a serial connection I also had a network connection with a constant ping to the switch so I know when it's "really" up.
The config of the switch was maintained during the upgrade to 5.8 diag and 5.7 image. However, after moving to the 5.10 image the switch now stays in a diag burn-in loop. I have to interrupt and select load image from the menu in order to get the switch up and running. During the upgrade, the switch also lost its config so I had to restore it from my backup.
I tried looking for a menu option to turn off burn-in mode but can't find one. The switch is in production and if it looses power and the UPS runs out it's going to get stuck in that loop...