petrockblog
Keymaster
Post count: 1827

Similar to another post (https://www.petrockblock.com/forums/topic/gpio-adaptor-issues/) I can only try to ask some helpful questions so far:

Can you post one or two pictures here?
Did you check all connections between the ribbon cable and the connectors?
Does your setup look like the one at https://www.petrockblock.com/2013/07/09/getting-started-with-the-retropie-gpio-adapter/?