HI,

My mavic pro, came out error at overall status.
01. Calibrate Vision sensors with DJI Assistant on PC or Mac for higher accuracy (I can do this, system keep ask me reboot device)
02. GPS encounters disconnect, please reset and check connection (I do not know what happen of this, today I got fell down the device)

Or latest firmware problem? I just update firmware by today.

Impossible to help people unless they give us more information about their devices and software versions.

Try to refresh firmware.

For the Vision Calibrating issue, please try to restart the PC and try and calibrate again. But for the GPS disconnection issue, you can also try to refresh the firmware via DJI Assistant 2, However, you mentioned that the device fell down, does it mean the drone fell down to the ground? If so, please try to restart the drone, if the issue persists, you might need to send the drone in. Please contact our support for a further help. http://www.dji.com/support

I reccomend you full sweep the aircraft. If possible. By that i mean you reset IMU and compass, You delete all firmware on both aircraft and controller, Then put it to the desired firmware. Had the same problem. Now it works like a charm!