Have you resolved this yet..? It's what refer to as a “Design Flaw” by Dell.. I've had to engineer a solution for this problem, as I have seen multiple XPS Models with this very same thing happening.. Note: this is on the opposite side of the WLAN Connector, but I would probably handle it the same way… Cheers

I have the problem with Trackpad and Keyboard not working on a customer's a1502.. Before I go replacing any ribbon cable(s) for a Trackpad or otherwise, can ANYONE answer this..? Why do both Keyboard and Trackpad work flawlessly outside of Sierra.? Pick ANY Linux distribution - I have 5-7 variants - and boot up to find KB and Trackpad ALWAYS working, ALL the time, without stopping or failing to work.. Thx