Lenovo company brings you an ideatab released on 2013 may its 370gms and 10.7mm thickness and its anroid version is 4.1v and 4/16 gb storage, micro sd card slot 1 gb ram I perform a hard reset after deleted every thing on your tab go to setting about phone and system update you will have to download 3 updates and after your internal storage is increased then you will be able to instal the apps in your sd card