RC not connect to Aircraft when i take off about 20merters dji mini

Hi there, we truly apologize for the inconvenience caused. The distance of image transmission is closely associated with various factors in the current environment, including the interference of Wi-Fi signals, signal transmitting power, relative direction and location of signal reception, obstructions, etc. I’ll troubleshoot for you step by step. Please rest assured.

1) What is the maximum image transmission distance after several tests flying your aircraft in your region?

2) Please check whether your aircraft, remote controller firmware and app versions are the latest or not. If not, please update the firmware.

Please let us know if the issue persists after you have followed all these steps. We look forward to your response