I'm short of storage space (no surprise) and have tried several apps which are supposed to allow moving apps to the SD card to regain space, even the 'unmovable' apps. All failed, because all require 'root access'. Have tried 3 methods to gain root access, none worked. Does any system work? My phone is Android 6.0. I would be happy to sign any waiver for Acer staff in case my phobne ios damaged, if they could just let me use my phone to its full potential. I'm not willing to just buy another, more expensive phone, because I've been blocked from accessing my own hardware. I'm now unable to download basic updates because of lack of space, evebn when there is a ton of space available on my card.