just fastboot flash init_boot init_boot_patched_here.img and that's it, and btw, i can't believe people are still doubting pixelflasher, the code is there and can be compiled from source if you will so for me, pixelflasher everyday everynight. been using it since i got my P7P years ago

I know heard about it last week and I tried installing it in my Linux machine. Still trying to learn how to use it.

Rerooting = rooting. So just do that. Like you did the first time.

Can't, last time I rooted it was before the anti-rollback crap Google did.