Hello,
My Mavic Air has a problem with signal of control. When I am standing 2 meters from drone it says firstly Firmare Uptade Required then, Ready to go, and after one second Controller Transmission Weak and finally No signal. Also it says that it is Strong Inteference of Aircraft.

Can it problem with no actual uptade?

First make sure your FW is up to date, then if using a phone put the phone in airplane mode make sure front antennas are folded down , and you are not in an area where high WiFi interference is about you.

Look at the radio spectrum/channel page and see how many red bars you have.  There were no open 2.4ghz channels at my home and I live out in the country.  My connection was very intermittant.  Try flying somewhere else.

Please refer to the suggestions above. Please keep us updated if the problem persists, thank you.

Hello again,
Problem was solved by doing an update.

Thanks for all replies!