firmwareVersion : 03.40.85

[Anqui3tas]

The new firmware version has broken CEC/EARC with Sonos soundbars, as well as automatic input switching so I'm trying to downgrade to the previous version.

I have developer mode but none of the other options seem to be working for me.
-I tried the 2 ipks with the firmware I want on a flash drive with no success, neither does anything.
-I tried the rootmytv and webosclub websites and the first just stays on connecting, while the later is not accessible.

here is my output from the CLI

modelName : OLED65C1PUB
sdkVersion : 6.4.0
firmwareVersion : 03.40.85
boardType : O20N_ATSC_US
otaId : HE_DTV_W21O_AFABATAA