I got today a GS752TXS with an old Firmware (FW-V5.2.0.20), thus I made an update to the latest Version (gs7xxtxs-v6.1.0.39.stk) with the procedure described in the "gs7xxtxs-v6.1.0.39_Release_Notes.html" file.
The Uploadpage showed after a while an succesful upload and I configured the "new" image as next an initiated a reset.
Afterwards the device wasn't any longer detectable in my standard Network (192.168.2.x), but it could be found again with an additional USB-NIC-Adapter in another Network (192.168.0.x).
The SmartControlCenter shows some missing entries:
I can't connect to switch neither with my own nor the standard password.
That is, what the Switch discovery tool shows:
Status of the frontpannel is: Power-LED is orange, all port LEDs are orange too, nothing else.
ping is working
web is not
I tried already a short and long (30s.) reset button, before and afterpowercylce, but no success.
Bottom line, the switch is still answering, but nothing else, tough how to continue at this status?
The GS752TXS firmware v5.2.0.20 was the initial firmware release. The best approach for updating the firmware to the latest version is to do it in a ladderized manner wherein update the firmware from v5.2.0.20 to v5.2.0.26 then, from v5.2.0.26 to v6.1.0.27 and so on until you reach the latest firmware which is v6.1.0.39.
Based from what happen as you have described in your initial post above, the GS752TXS got bricked since both the power LED and the port LEDs are just lit up orange and unresponsive even after doing several factory reset & powercycle. Thus, the switch needs to be replaced.
