How to install Android 6.0.1 Marshmallow on samsung J2 J200F/G/GU

Samsung Galaxy J2 SM-J200M 5.1.1 Lollipop is one of the Mid-Level Mobiles of Samsung.It comes with the Lollipop Version.

Here we Provide a custom ROM for Samsung Galaxy J2 SM-J200F J200G J200GU Based on ON5 pro SM-G550FY stock rom with latest mashmallow updated.  

First You must root your  samsung J2 mobile with computer to install TWRP on J2 and flash superSU. here is a full guide to root samsung galaxy J2 running android Lollipop 5.1.1

 Now after rooting your samsung galaxy J200F, J200G, J200GU. 
LINK 1
download the custom rom for samsung J2 from here 
LINK 2 Mega Link

you will find all informations and trucks you need  in the source here you ask the developer about the rom
How to install android marshmallow 6.0.1 on samsung galaxy J2 tutorial

if you faces front cam fail issue then flash this boot