Maybe you were looking for one of these abbreviations: OKX-OKY-OKZ-OL-OL MKT-OLA (OC) - OLAB-OLACEFS-OLAD-OLAF.
JanSport is an American brand of backpacks and collegiate apparel, now owned by VF Corporation, one of the world's largest apparel companies. JanSport is the world's largest backpack maker, and together, JanSport and The North Face, also owned by VF Corporation, sell nearly half of all small backpacks sold in the United States.
1 It looks like e fun is the manufacturer....  2 Nextbook is manufactured by e-fun inc....  3 It is just a rebranded kocaso tablet specifically the kocaso m752....  4 Usually the sony are the first to have created the nextbook....  5 And you can try contacting them for warranty issues....