It would appear that my gimble might have something loose?    Maybe.  the unit is brand new.  but only 50% of the time when I turn it on does the gimble work correctly.  50% of the time it has no video transmission and no SD card data.  But the unit flies so it is connected.  I can then power it down and the battery circle light flashes and it takes longer than normal to shut down.  Then I reboot and everything is fine...

What do you guy think?

I was wondering if I could flash the firmware.  Or maybe remove the gimble and reseat all the connections.

I would send it back, since it's brand new.

Do not remove the gimbal. If this is a new unit, please contact the point of purchase and see what the refund period is.

Best Buy...  they say to contact the manufacturer...  or pay 15% restocking fee.  Can't really afford the downtime currently using it for a 107 operation.  We are already short aircraft.  This one was bought as a back up for another one that had a defective Gimble  That one had a stress crack visible in it after just a few hours.

Gimbal disconnect issues do occur on the Mavic after more aggressive flying but your case is not good - I would strongly suggest returning it to DJI for a diagnostic evaluation and repair.