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Posted: Monday . Last Modified: Monday
I upgraded the firmware on my SRT6KRMXLT and now my UPS will not power on. I just get a red panel alarm, Comm Event: to power off press and hold power button.
So I am trying to determine if there is a way to trick the UPS to thinking it is turned off so I can manually run the downgrade. Appreciate any help I can get to avoid having to buy a new UPS.
Thanks
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Posted: yesterday
Read the entire thread good luck:
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Posted: yesterday
Yeah, I saw that post. Their problem sounded like the NMC was bricked. I can get to the NMC fine and upload current and old firmwares. But on mine when you upload it you have to issue the firmware update command to actually install it, at least that is what I find in documentation. Maybe I am missing something.
Thanks,
Steve
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Posted: 8 hours ago
Hi Steve,
In that thread I call out the specific steps that must be in place and done. Specifically the firmware must be done directly using the RS-232 -> RJ50 Serial cable.
The options are to try the FUW first and see the results. If that fails the break fix is attaching the USB cable at the same time.
The last method is using X-Modem and follow the APC Technical Manual.
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