Copy the backup to PC, so that you can copy and restore the backup in a new device or new ROM.This process you have repeat every time you reboot your phone.
You can now disconnect your phone from computer. Now you will see a right tick on Helium App on PC, it means you have enabled backup option.Now it will ask for Debugging permission on phone, tap on ‘Allow USB Debugging’.Connect your phone to the computer using a USB cable.Open Helium App on both Android phone and computer.Download and Install ADB Drivers on your PC.