Ok, so I updated from stock, using official update phone rebooted and stayed at samsung screen forever it kept blinking and vibrating. Pulled battery, tried restarting it goes samsung loading bar -> VM welcome -> flashing/vibrating samsung screen.....I can get into recovery AND download mode. Tried clearing cache, factory reset, and updating again, but still gets stuck at samsung screen. I am desperate guys I really need help, I am going on a LONG road trip this weekend and need my phone so ANY help would really be appreciated. THANKS!