I found this thread;
https://community.spiceworks.com/topic/2119843-upgrade-apc-firmware-ap7921-switched-rack-pdu
I need to update an old device too but each time I do, I get a login failure even though I've used the default factory of apc/apc and created a new user as well.
Anyone know how to update this device?
Could not find a tag for power bar or APC.