contoller

So I have now got a main controller data error. I see a video saying replacing the main controller sd card solves this. But apparently it's glued in and probably wouldn't solve this. I'm stumped. I ve replaced the shell gimbal yaw arm ribbon cable. Solved a battery data error and now have this...

Hi Unfortunately someone thought they had more right to my Phantom than me , and decided to steal it after it came down on a hill . By time I got up there it was gone It had a brand new battery( first flight )and a gopro !!. i think the battery ran down , however it did not return as it...