Default How to backup EFS/Factory folder of P3110

Hi guys, can someone help with idea how to backup EFS folder? I've try with efs pro but can't initialize adb server connection. I'm rooted with twerp 2.6.3.0 recovery installed. I've already do efs backup through twerp, but wants to know other way. Thanks in advance..

Sent from my Galaxy Nexus using Tapatalk