Happily trying to upgrade RAM and second nvme to my Inspiron 16 Plus just to discover someone smart at dell installed the M2 2230 drive in the 2280 slot and left open
Dell Inspiron Mini 10 RAM Replacement - iFixit Repair Guide
How to Upgrade the RAM on a Dell Inspiron 15 7501Laptop : 6 Steps - Instructables
How to Upgrade the RAM on a Dell Inspiron 15 7501Laptop : 6 Steps - Instructables