Tried all four versions with the installer with no luck. If the phone was running 8.0 something is that a no go. Did the steps reccomended in pop up during install. Getting Your device cant be checked for corruption message and then stuck on Google screen.

Just picked up a 6p going to give that a shot.

How about the Sony? Does that have the Volte package? Just trying to figure out my options on phones so I can scour a deal on ebay. I was getting the Nexus 5s for like 40$
Just looking at a review of the 6p and it looks pretty big.

I am having a similar problem with Nexus 5. Everything was working fine for months and without any setting being changed no longer getting 4g no data or mms working.
Tried the basic stuff updating to most recent Ubuntu Os and erase and reset phone with no luck. Cell service is drastically worse than previously.
Trying to narrow the issue down as it could be Ol Nexus phone, Sim card provider, Att or ubuntu touch. Im leaning towards Att switched something.