I purchased a Samsung A9 tablet and the first thing Inoticed is the battery life was like less than an hour. So looking into what was burning battery I tried turning off bluetooth and the tablet turned it back on in about 20 seconds! So I researched and found out about resetting network settings however that option was 'greyed out' as was the factory reset option, So I got frustrated and turned the machine off but it restarted instead of turning off. Do I just need to take it back to Walmart??