need some help in rooting my moto e 1st gen 2014 (xt1022). pls help

hi guys i am trying to root my moto e 1st gen xt1022 and i found this thread for this.

http://forum.xda-developers.com/moto...guide-t2807891

i read the thread in detail but i want to know will all the steps work for me as i have the latest ota lollipop 5.1 update of moto e. can i root my phone with the steps in the thread on my current software version safely?

also please tell me what are all the things i should backup before doing this and after the root and what should i do to revert back all the changes to stock version with locked bl and unrooted phone later.

thanks. any help would be much appreciated.

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