Link2SD | 1st partition not working / not showing / not detected
try with this method https://www.youtube.com/watch?v=ewgV3Ty9Bnw  to creat the mount script of the second patition using app2sd(all in one tools)[ROOT] 
i hop that help you ..... 

https://www.youtube.com/watch?v=ewgV3Ty9Bnw