I have been carrying a Nexus 5X for a while now, and for the most part I love it. Having a pure Android experience, rather than one with a UI skin forced over the top of it, makes the Android experience very close to the iOS one for the most part in my opinion.
Partly because it is not the only phone I carry, I also decided a few weeks ago to sign it up for the Android beta program. I was already running Nougat (Android 7.0), but I wanted to see what else they were planning in the Wi-Fi space particularly. Everything seemed to be going well until the beta 7.1.1 drop landed on the phone. At that point, I started having problems with Wi-Fi stability and, worse, lost LTE completely.
After a few days of that, and at least one attempt to find where I could send feedback that might be noticed (Google really needs to learn from Apple here and include a dedicated beta program feedback app in the builds), I gave up and worked out how to get the phone out of the beta program. This is one place where Google beats Apple; as soon as I did that on their site, the phone indicated that it had an “update” to revert me to Android 7.0. It was a full install (so all data wiped), but that’s OK.
At the end of that I opted to setup using a backup. There was the first problem. The latest backup it showed me was from my old Nexus 5. Nothing from the 5X despite it being setup for backups all the time I’ve been running it. No big deal, the Nexus 5 backup will be 90% or more, and the photos (which are all I really need) are all in Google Photos anyway.
The process was as smooth as usual, and in no time I was back to running Android 7.0 and my LTE signal was connected again. Then, it offered me an update to the public Android 7.1.1 release. This had a different build ID to the one I had been running, so I took a chance (didn’t really have much to lose).
Public Android 7.1.1
This is an OTA upgrade, so not a full wipe & it doesn’t take long. When it was done, the phone restarted and my LTE was gone again. Seriously. In a public release of their new flagship OS, LTE is not working on the Nexus 5X device (connected to AT&T). It works fine with Android 7.0 (and previous releases too). It amazes me that nobody at Google had noticed this before they shipped it!