If you are wanting a stock 4.1.1 experience, check out jstntp and Paul's source build rom over in the rooting roms section
http://forums.androidcentral.com/showpost.php?p=2036101
Well...it's not new to anyone who comes in through the home page...but this sounds promising!
Sprint's Galaxy Nexus, Nexus S 4G may be in line for Jelly Bean this week | Android Central
Let's hope it ain't smoke!
I actually just purchased a used Nexus S 4G this weekend, spent an hour or so last night unrooting and activating on Sprint, had to get away from my BlackBerry LOL.
ICS is nice, but but having a Nexus 7 with JB, and makes me crave it for the phone too.
I'll be checking my phone all day tomorrow, like a crackhead looking for rocks LOL.
Sent from my Nexus 7 using Android Central Forums
small typo perhaps?
*#*#checkin#*#*
or
*#*#2432546#*#*
But that still didn't get it for me....
That does the exact same thing as "check for updates" in the System Updates section of the settings menu.
Dial that number (check the time when you do). Then go into the System Updates screen and it will tell you the exact time you last checked for updates...which will be the same time you dialed the checkin.