[Phil1979]

http://www.samsung.com/us/business/support/owners/product/SM-T230NYKAXAR

I have this one. Can't install anything on it. Either getting -18 error code or it says the game is already installed.

Factory hard reset and formatting SD was no help.

Ready to trash it and buy something else.

Anything else to try?

Running Android 4.4.2

 

[UtiPossidetis]

Sorry about your troubles. Never had any positive Android experiences, ever. Have had nearly uniformly positive Apple experiences. Good luck.

 

[Marine6212]

Phil, have you asked the androidcentral.com community? They may already have a solution for that.