I discovered talking with some other Ioniq owners about the engineering mode that can be activated in the firmware screen
Using two fingers in map and version ticking several times until a PIN screen appears, put 1111 and then can be activated, showing something like this:
There're things in korean like in the ADAS part (better not change anything without knowing how to use it)
I would like to investigate if it's possible to modify the Android version and apps of the radio using a computer connected by USB by ADB to modify and put some new apps in the system

Using two fingers in map and version ticking several times until a PIN screen appears, put 1111 and then can be activated, showing something like this:

There're things in korean like in the ADAS part (better not change anything without knowing how to use it)
I would like to investigate if it's possible to modify the Android version and apps of the radio using a computer connected by USB by ADB to modify and put some new apps in the system