Dji F450 acro build

[Hollywood_fpv]

Good morning everyone, I'm new here to the site but not new to the hobby. I recently found an old flamewheel kit laying around so I thought id go ahead and build a fun little AP rig that can also double as my "recovery quad," for when I get my minis stuck in trees and on roofs.
I used the dji red motors, flamewheel frame, big old opto 30a escs, and finally I am running a dys pro v2 f4 fc....the problem is none of the motors spin up when armed or in betaflight...I cant seem to program the escs in bhelis app. I confirmed that my solder points are correct and secure. Receuver is the frsky xm plus and is properly bound....I am out of ideas. Anyone have any ideas or suggestions to get me on track? Is the due f4 fc not compatible with the escs?

 

[Hollywood_fpv]

UPDATE.
So I got the motors spinning.... In my frustration I got all worked up amd stupidly over looked my throttle settings... I lowered the min throttle to 1000 when armed and boom, they fire right up.
Now onto the next problem. I also realize now that the motors are not spinning at the same rate, sometimes motor 3 needs to be manually spun to get going. My question is what can be done to resolve this and what could be causing this... Not something ive seen with my mini quads.

 

[rebelyellNC]

Hey Hollywood, I built a DJI F550, but used all DJI parts. So I'm not sure what your motor 3 problem is, unless it's binding mechanically. I'm not familiar with any of the components you listed, so probably can't help much. I have a thread on the F550 build on Other DJI Drones forum with over 6000 reads. Maybe something in there will help. If not, I hope you get some assistance, because these flamewheels are a hoot to fly. Good luck and safe flying...