onda v989

I purchased Onda V989 AIR Octa Core Tablet PC 9.7" IPS Allwinner A83T Octa Core 2GB+32GB Android 4.4 on 3 December, 2015. I received it in January, 2016. After just one-month's use it has started giving me problems. While browsing or playing basic games ( Candy Crush etc ), it just shuts-down by...