Chosen Solution
I accidentally ripped a flex cable on the iPad 7th(2019) and trying to identify what part it is but I’m not having any luck. I attached a pic and circled where it was. If I’m not mistaken the top flex is the power button and volume button flex but what is the one on the bottom for that is missing?
It’s not the button cable, that cable is the upper one and it looks right. What you broke is the lid sensor cable, something like the below link. https://www.ebay.com/itm/254742090407