Mind pointing me in the right direction to go about doing that, I'm on cwm 6.0.4.5 and I don't think it gives me the option to backup efs
Edit: nvm I found the efs and modems thread in android dev
Sent from my Nexus 10 using XDA Premium HD app
Good.
Make sure you make an EFS backup ASAP and store it off the phone just in case. That will save you if it wipes your EFS information (IMEI etc..)