This may sound weird, but does anyone know how to get Ice Cream Sandwich Back?

[Tony31087]

After my phone did an upgrade it started having problems, random reboots, wallpaper stops, games stop, etc... any idea how to get ICS back?

[Ann154]

You can't officially go back to a previously version of the Operating system on Android devices. Have you tried a factory reset to verify the old code was removed and you're not having application conflicts?

I am having a few glitches with an application myself after the JB update, but I am sure it is related to the application and not JB. This particular application hasn't been updated for over a year so it hasn't been tested for ICS or JB.

[mrpearsoy]

Generally speaking, not by the usual method. Discussing it here is against forum TOS. The problems that you are facing is normally fixed my clearing your cache and doing a hard reset of your device. That is always recommended after a major software change, and if you call tech support they will walk you through that in order to fix your issues. Have you done it?

[Cybergoobr]

If you go to Google's factory images webpage, there you can find both ICS 4.0.4 and JB  4.1.1 Verizon images to download. If you do a Google search for "google factory phone images galaxy nexus" and you should find the page and links to download.