I searched many forums but there seems to be no clear way to identify the screen type other than by eye. Clue #1: The box has no mention of AMOLED. Clue #2: P/N is 99HKZ009-00 Clue #3: Made in China Clue #4: Unbranded, unlocked phone bought from a US retailer. My plan is to root. According to what I've read so far, the method depends on the type of screen, SLCD or AMOLED. I need to know for sure, so as not to brick the phone.