I've got my Mi3 today and I am setting it up. However, I am having trouble getting access to the /system folder. The app Gsam battery monitor needs to have its root companion app installed in /system/priv-apps/ When I try to move it via the app itself it fails, when I try to move it myself, it fails as well and even when trying to convert it to a system app via Titanium Backup it says there's not enough room on the system partition. I am on the latest multilang. How can I get write access to /system? I can grant root rights just fine, as Titanium Backup works great otherwise.