After I tried to calibrate the sensors the craft beeps from the motors and will not connect in RC or wifi.

I have updated firmware and tried down grading firmware and nothing stop the beeping. It won't factory reset. This is the same type of beeping that you would hear if you set off "lost Aircraft alarm. im at the highest update on controller and craft. See video

Have you tried to restart the drone or change another battery? If it is convenient, please provide me with the screenshot of the firmware info after connecting the drone to DJI Assistant 2. And please also try to relink the drone and RC to see if the connection will be established. If yes, please connect to the app and see if there is any info for reference. Thanks.

Which motor(s) are beeping?
Try to calibrate the sensors again

Check the led under the SD cover, if it’s red, faulty core board! Could be bricked from a failed update.

If the aircraft has been crashed, the Flight Controller can detach from the ESC pcb, this will allow you to connect and use assistant 2 but not much else.

Either way it will need to go for repair.

Hi there, looking forward to your reply.

So... red light at the wifi switch means its knackered yeh?

I got this exact same problem. Replacing the esc board did the trick for me.

Buzzyone Posted at 2018-3-26 22:06
Check the led under the SD cover, if it’s red, faulty core board! Could be bricked from a failed update.

If the aircraft has been crashed, the Flight Controller can detach from the ESC pcb, this will allow you to connect and use assistant 2 but not much else.

Im having the same problem with mine, all motors are beeping and the rear light is green and red. I cant do nothing with my controller bit it only gives me video feed

DJI Thor Posted at 2018-3-26 00:47
Have you tried to restart the drone or change another battery? If it is convenient, please provide me with the screenshot of the firmware info after connecting the drone to DJI Assistant 2. And please also try to relink the drone and RC to see if the connection will be established. If yes, please connect to the app and see if there is any info for reference. Thanks.https://www.youtube.com/watch?v=G52F4hlR4MA&index=24&list=PL8-vxWY64sBNLusG0MvxD4Dm-tX4cnvzX&t=0s

Nicely done - thanks again for sharing!