I’ve been using atom422 ROM with Ak Kernel for a week now, and I must say this is the best ROM/kernel combo I had in my Galaxy Nexus. And it’s underclocked! I will be using atom422 v9 and Ak Kernel 731. Backing up your device Backup using Titanium Backup Backup Nova Launcher settings Backup SMS using SMS Backup & Restore Reboot into recovery (I have ClockworkMod Recovery v6.0.2.3) Backup (backup and restore > backup) Go into “install zip from sdcard > choose zip from sdcard” just to guarantee that ClockworkMod Recovery is accessing the storage Plug the phone into a computer (I’m using Ubuntu 12.