PDU Firmware Upgrade Error

[BillP]

Hello, we've got 8953 PDU's daisy chained for management (NPS), I upgraded the host from version 6.5.2 to 6.6.4.  This went through fine, but as they are daisy chained it then is meant to filter down to the other PDU's I've got connected.

On the guest PDU's it's got a message saying "Firmware upgrade in progess from host PDU" the problem is, it's been stuck on this for a few days now so obviously hung.

It's also done it on some others, I then stopped doing any further ones as it looks like they are slowly dying.

I just connected to the console and done a reboot, resetToDef & format, and nothing has fixed the message on the screen.

Short of removing the power completely is there anything else I can try?

Thanks