I just got in a refurb iPad Mini 2 for $120 shipped from Amazon. It is upgradeable to iOS 12 but won't do iOS 13. Physically it's in great condition but every time you turn the screen on the contrast goes to heck after about 30 seconds
and white smear lines appear. Also it seems to run a bit warm to me and the battery percent is dropping quite fast - looks like the battery is only good for 40 minutes
. It does load the app fine as well as the app for my Zoom L-20 . My older iPads are two iPad 2's and an original iPad Mini which only support iOS 9
all still run as well as new with 10-ish hours of battery life still
.
Anyways I'm going to keep it on until the low battery shutdown happens and fully charge it and see if that helps. I've already done a factory reset on it but no joy.