[ozrien]

Just as a sanity check can you try field-upgrading a different device, like the PCM (or a Talon SRX if you have one). I'm just trying to confirm if the issue is PDP side or RIO side. Sounds like the PDP is entering boot-loader ok if you are able to see the green/orange blink on the PDP.

I heard of one other case (another team) where this exact symptom was described. They ended up re-imaging their RIO and the problem "corrected itself". But I don't think that should be necessary (likely something else was going on).

It shouldn't be that difficult to flash the PDP, can you try a clean reboot of the RIO and then opening a fresh browser. When the PDP comes up just try doing a "Light LED Device" checkbox and press save. See if the PDP blinks fast-orange in response to the checkbox.