Can get in to fly mode

i have done the ESC calibration, and everithing works great but then i cant put the drone in fly mode.
can you please help me.

Yes, we can help you… if you post the error message and fully describe the steps you are doing .

well i have done the ESC calibration so that when you pull the throotle motors start to move imediately, but after that i dont knoq how to put my drone in to fly mode, i saw youtube video that it says after you have done the ESC calibration you just simply disconnect and reconnect the battery and it should be back in fly mode. But After i do that i cant do nothing i cant get motors to move.

Which Flight controller…?
Have you read this-