If my local shop is more expensive and doesn ' t do anything on the service side to offset that price then I will shop online all day . Basically this is my local shops , all run by douchebags whose only selling point is , buy local bro ! <| sep |> 1 . The OP 3 is discontinued . You are forced to get the 3 T . You might be able to find one on Swappa , where somebody could be selling one 2 . You do not need to install a Custom ROM if you want root . You can stick with OxygenOS and just install TWRP , a custom recovery , you NEED this to install root . Also , you NEED your bootloader unlocked , as you cant do anything without it being unlocked , this is easy though . 3 . Even if you want install CM 1314 , Dash Charge will work , at the same speed . Fingerprint sensor will still work as well . As for Android Pay , the only ROM that works with Android Pay is Sultan ' s CM 13 , as he figured out a way to bypass SafteyNet the protocol that usually blocks Android Pay on devices with their bootloaders unlocked , and rootHope this helps . ps read up on a lot of stuff about this before you attempt any of this . please . you don ' t want to end up with a shiny brick . I also highly suggest Android Explained Tutorials on YouTube . They got me through Rooting and other stuff without any problems .