Bad news… Apple and android both plan for their products to be obsolete, usually within about five years. That is not always the case with the newer stuff, it seems like they are letting the newer stuff go longer, but all that first and second generation stuff is pretty much just good for old games.
If I were you I would sell that for about $70, because that is likely all you’ll get out of it , And invest in a new iPad. I personally use an iPad Air 2 128GB, and I find the screen size is just right for creating maps in the living room, then transferring it to my overland vehicle for use on the trail.
James