I have a Eaton 9PX 3000i RT 3U and i would like to update the firmware.
Current Firmware: 01.17.4945
Target Firmware: 01.18.04945
The upgrade starts but when it is finished (download in progress 100%) the UPS restarts (fan run at max) and then old version is shown.
I tried updating via RS232 but it also does not uses the new firmware. Factory reset of the UPS does not help.
What could be the problem? With the Program setUPS it shows 100 %
Thank you for your help.