Dear Silverhead, thank you very much for your advice. We did as prescribed and all went well, however for some reasons when the device started to reboot after firmware update, the display showed "Boot failure, entered Update mode". This message repeats each time we try to re-start it. FYI, we did not turn Helix off while updating. Please advise what can be done to convince Helix come back to life. Thank you and
Kind regards,
Sergey