SMTL1000RM2UC Firmware Update Loop

[Tekmanagement]

I have an SMTL1000RM2UC on firmware UPS 01.5 (ID1026), which was the very first firmware for this particular model as far as I know. I have an NMC 3 card (AP9641) installed.

I can't quite remember if I tried updating the firmware through the NMC originally, but the UPS started displaying a prompt saying firmware 15.5 was available. I told it to update using the front control panel, and it goes through the motions like it's updating, but then it just reboots and says that 15.5 is available. I've confirmed it's still on 01.5 however.

I've also tried through the NMC, both using it's built in "Updating Pending: Install" prompt and also manually uploading the appropriate firmware through the NMC directly. All attempts result in the same behavior, it shuts down the UPS, the panel blinks a few times, it comes back online, and the firmware version is unchanged and continues to prompt for the 15.5 install.

I finally got around to shutting it all down and removing the NMC and trying to update using the Firmware Upgrade Wizard, but it does the same thing. It transfers, seems like it's working, shuts down the UPS and no update to the firmware actually occurs.

I'm assuming I may need to update to 2.9 first and then jump to 15.5 (since it goes from 2.9 directly to the 15.0 branch in the release notes)? But the problem is I can't seem to find previous versions of the firmware posted on the site anymore. Is there a way I can get a copy of the 2.9 firmware meant for the ID1026 SMTL?

[Teken]

You will need to contact APC Technical Support to obtain the previous versions of firmware or FUW.

As you correctly noted the system needs to be upgraded in a staged manner. As they changed something in the boot loader at some point.

This specific issue is the one of the prime reasons as to why a perfectly working system is bricked! 🤦‍♂️👎

Regardless, please review the APC Firmware FAQ as your not following the recommended guidelines.

As such you will end up bricking a fully operational system! ☝️

https://www.apc.com/us/en/faqs/FA164737/