SMT3000MI2U failed firmware update and recovery

[Bamzad]

Good morning from the UK first post here.

after much looking on the forum I couldn't find this information so thought I would post to help.

I have tried to do a firmware update through AP9630 and it seemed to hang for hours.

now ups LCD does not work seems bricked.

I have tried connecting the ups via serial cable to USB (AP9827) and nothing is detected when I connect the ups vis USB a to b cable I get 2 devices appear in device manager "HID-compliant vendor-defined device" and "USB Input Device" still the firmware upgrade wizard fails to find anything.

I managed to use the NMC Firmware Update Utility to upgrade the network card to the latest version but it can't communicate with the ups.

Fix

I'm not sure how maybe someone could explain the network card picked up that the ups had a UPS has no valid firmware (this was after leaving the ups on all night)

I now have the ability to upload a firmware, I did this and now I have a working ups again

many thanks

Jack