I know that a lot if people have posted on here but I'm frustrated, I had amazing battery life, no lag, no frustration. I loved this phone. Now lollipop has made me hate it. It drains my battery, it lags, even trying to backspace when fixing a typo causes the thing to freak out, it shuts off randomly and restarts, it gets hot but thankfully hasn't given me any overheating messages. I've tried to factory reset it but apparently I can't go back and I don't think that's right. I should be able to choose to downgrade my OS. Is there any possible way without doing some ROM crap to get it back to the original OS it came pre-installed with?