Can anybody please provide me some steps to upgrade my nexus 7 2012 32gb wifi,to 5.1 lollipop,using nexus root toolkit,and i would like to save all my apps and data intact,just as they are now.

My current mods:
Franco kernel
Xposed installer
Unlocked Bootloader
Rooted
4.4.2 kitkat
Busybox App
SuperSU App.

Any reply will be considered of great help,as i am sick of kitkat,and i will be very thankful to whoever provides me some detailed steps to upgrade to 5.1 lollipop,keeping my apps and data intact!


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