Hi, my drone suddenly not turning on. Last time it flew well but I made a mistake of not removing the battery connection from the drone and it discharged automatically. Now,  after 2 weeks, I tried to on it after charging the battery and only the battery is on but no response in drone. Any suggestion will be highly appreciated. You can see in the picture only the battery is on. Tried it with different batteries and checked the connection carefully.

Try posting this in the FPV drone section, as they would be better to answer your question.

Hi, thank you for reaching out. We're sorry for the unpleasant experience. In this kind of situation, I'm afraid that you may consider sending the unit in for a proper diagnosis. You can contact our support team to start up a ticket at https://www.dji.com/support. Also, the warranty can be applied depending on the outcome of the damage assessment including the warranty period of your unit. Thank you for your understanding and support.