AP7920B firmware

[OmegaPoint6]

I just purchased a used AP7920B and I'm having trouble updating the firmware.

It has NMC2 so I download the NMC2 firmware from the product page but for both 7.2.4 & 7.1.4 I get the following errors from the upgrade too

[10/29/2025 11:56:13] Firmware distribution does not match target device platform; this could be due to a corrupt distribution.
[10/29/2025 11:56:15] Unable to update device 192.168.1.7 with Boot Monitor; stopping all further processing of this device!

The PDU is currently running v6.4.4, I can see references online to newer 6.x versions but haven't been able to find a download.

Does anyone know if it is safe to manually upgrade to the latest 7.x version? If not where can I get the latest version my PDU can support.

Full version info:

pc>about
E000: Success
Hardware Factory
Model Number:           AP7920B
Serial Number:          xxxxxxxx
Hardware Revision:      B2
Manufacture Date:       02/08/2017
MAC Address:            xxxxxxxx
Management Uptime:      0 Days 0 Hours 38 Minutes

Network Management Card
Model Number:           0G-1238
Serial Number:          xxxxxxxx
Hardware Revision:      05
Manufacture Date:       02/07/2017

Application Module
Name:                   rpdu2g
Version:                v6.4.4
Date:                   Aug 16 2016
Time:                   10:44:51

APC OS(AOS)
Name:                   aos
Version:                v6.4.4
Date:                   Jun 13 2016
Time:                   16:21:53

APC Boot Monitor
Name:                   bootmon
Version:                v1.0.8
Date:                   Apr  8 2014
Time:                   10:59:40

[Teken · Accepted solution]

Generally speaking, this ridiculous nonsensical message indicates the following conditions:

User: The user is not an Administrator with privileges as such do not use a Device / Network / Read Only account when entering the credentials.

Protocol: Do not use SCP but FTP during the upgrade process and insure FTP is enabled in the NMC.

Logs: Do not save logs if present as this sometimes causes a delay in the upgrade process as such results in a failure. 

If all the above has failed than the next option is to use the CLI and upload the individual files as outlined in the APC NMC FAQ.

NOTE: You’re best served by contacting APC Technical Support to obtain any interim 6.X.X NMC rPDU firmware before jumping to the 7.X.X branch to avoid bricking the rPDU.

Have them confirm the NMC hardware in place and relevant rPDU firmware. 

Questions Ask . . . 👍

[OmegaPoint6]

Thank you, it was the FTP/SCP thing. I risked the direct upgrade and it worked

[Teken]

That’s great to hear and appreciate you following up with the solution and final outcome.

Rock On . . . 🤟