Would ANYONE please be able to guide me on how to do a master reset on the KLU LT7033D? I have tried several methods but can't find one that works. Mh 4 year old somehow managed to add a pattern lock and now can't remember how to unlock it. I've tried the power+volume up method and also the powe+colume down method and still nothing. ANY help will be extreamly helpful. Thank you in advance!