the other day i woke up from a nap, deleted my txts, set my phone down got up came back and it was stuck on the samsung opening screen. ive tried taking the battery out, ive tried draining the flee power(holding the end buttin for 10 seconds without the battery), and ive tried plugging it in. today out of frustration i decided to turn it on and press a bunch of buttins hoping it would restart it. instead it got stuck into usb download mode. so i pressed a bunch of buttons. no result. so i took out the battery turned it on and it got stuck into samsung screen again so i pressed a bunch of buttons again got into usb download mode again. so i can get it stuck somewhere else besides samsung openig screen. is there anyway to get it to fully turn on?