Please be warned that once you're on internal build, reverting to the 8.0 stable build requires a full data wipe so make a back up of it before updating to 8.5. Also, sideloading via RAL no longer works on 8.5, hence, you'll be stuck on whichever build you're on unless you rollback to 8.0. If you're hesitant to sideload builds then don't do it. Internal builds are usually not Play Protect Certified [Google certify an internal build rarely], thus, Google Wallet won't...​Read more