RELAY AFTER START-doesnt working

[dudo02]

for versions 1.2 probably will also be

Hi ,Tomek.
I tried upgrade new firmware 3.10 .
Upgrade was successfull ,but LK doesnt working :| .
Looks like dead - RJ 45 conector LED`s doesnt blinkinkg at all.
Reset button do nothing.
Is there possibility put back old firmware in this condition?