Well, actually both solutions didn't work. Even disabling the setting you mentioned didn't solve since my TV, after few seconds, detects that the ANYNET source is switched off, and automatically changes source to HDMI2 (the port where Raspberry Pi is connected to). Also the settings in es_settings.cfg is already set to TRUE. Infact the recalbox already boots and launch kodi, but the CEC setting in KODI is probably not working while RECALBOX starts. 😞