my phone froze up so i did the old trick of pulling the battery out then putting it back in, i then turned on my phone... the sprint logo came on as usual then the android logo came on as usual as well but never went any further. instead it blinked every 30 seconds like it was abt to turn on but never did... whats wrong with my phone?? i havent even had it a yr yet. could it be the battery??? plz help.