Recalbox is not include in CASE MANAGEMENT the Hat Recalbox RGB Dual, so, the 4 options showed don´t work.
Why? because Recalbox RGB Dual use GPIO 26, it is not usual for Fans beacuse is not a PWM pin, so the fan works as ON/OFF, is not progressive, but better than fix the fan to 5 or 3.3v.
To do it you need to add this in recalbox-user-config.txt
May be the recalbox masters can add Recalbox RGB Dual Hat in CASE MANAGEMENT options in the next update 🙂
no Support for old Versions here on this Board !
These are the Rules made by the "RecalBox-Team" and the Moderators of this Board !
I would like to help but it's forbidden by the People mentioned above, because here on this Board they want only support for the latest Version of RecalBox, even if the Support for the old Version comes from other Members and not from the "RecalBox-Team" or the Moderators.