I've started with a new TV box yesterday. Set all settings up, auto scanned digital resources and got a lot of DVB-T and DVB-T2 channels. Later I was asked to upgrade to 6.5629. Upgrade finished OK, but auto scan of digital gets 0 channels found, now. I tried to restart, later to reset to factory settings, again restart, but no success. I still have 0 channels and I'm not able to add some... Can somebody help?

Thanks