Hey everyone, typical android noob here. I recently bought a broken Zenfone 2 (ze551ml) from eBay, thinking that the screen needed to be replaced. However, when I received the phone, I realized that the problem was software-related instead. Here's my issue: my phone boots just fine and makes it to the welcome screen, where it asks for my language. However, it does not recognize my touch when I attempt to select one. Yet, when I hold the power button to turn off the phone, the screen recognizes my touch when I select "shut down." I am able to boot into recovery mode, where I have tried a factory reset, but that didn't solve my problem. My inexperienced guess: I think that the main system is corrupt and that reinstalling the android os may solve my problem, but I have been unable to find a usable guide to do so. I know that I need to unlock the bootloader, replace the recovery system with systems like CWM or TWRP, and I may or may not need to root my phone, before I can install a new ROM. I was also unable to find and download the Asus flashing tool. My eventual goal: I would like to have this phone running a nightly build of CM13. However, I would be content with the phone running the stock ROM at this point. I would greatly appreciate any help.