I ended up buying a 5490 touchpad button set for 4 pounds off eBay. It was the only one available. I opened up the laptop and put the new one in. It felt a bit different to the old on - I think it was a different brand as the ribbon cable looked different. Everything worked fine though afterwards.
Hi, I bought a latitude 5490 i5 8th gen laptop and encountered a problem with the touchpad buttons. The bottom touchpad(both left and right click) do not work but the ones above (connected to the keyboard) do work. Is it possible to connect up a touchpad from a different laptop to see if it is the motherboard or just a touchpad button fault. I do not own another 5490 to check but I have a 7290, a 7490, a 3300 and a 3400 laptop (all made in the same generation- 8th gen). I am hoping I can just connect the touchpad buttons from one of these laptops into the 5490 to diagnose the problem. I don't really want to take apart the 7290 and 7490 as they are in constant use but the other 2 are fine to be dismantled for this test. I am asking if this is possible
Dell latitude 5490 touchpad button not working