(Newbie) D6603 root

Hi.

I have recently bought a secondhand d6603 on Android 6.0.1, build number 23.5.A.1.291

I need to find a way of rooting my phone (easiest way)

I have rooted phones before but only by using Kingroot etc

I have been going round in circles looking at websites explaining it but don't understand some of it.

All I want is an easy explanation of how to do it that I can follow.

Can I root without unlocking Bootloader? If not, how do I do it?

I really need someones help if possible. Like I say, the easiest way possible would be great.

Thanks in advance. Love the group :):):)

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