Firmware upgrade t v1.5.4+

I am unable to update the firmware from v1.4.15 to v1.5.4. When I try to update using the configuration tool, I get a “Firmware updated successfully” message but the version does not change . It remains at 1.4.15.

Please assist. This is urgent.

We pushed OTA files for v1.4.15 to v1.5.4.1 again. Please try it