Sideloading Lollipop Firmware From Kitkat Firmware

Hi guys,i have just reverted my phone from RR ROM to latest stock Kitkat firmware by using sideload method.:silly:
I wonder if i can sideload the "LATEST" which is stock Lollipop ROM .86 from Kitkat,can I? :confused:
If you know how,please enlighten me the steps down below :angel:

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