Hi. My AC got crashed last new year (pilot error) buy still works after it crash even if I used super glue in it’s front arm. However, I decided to replace it with a new one when I saw an available parts in online store. I replaced it on my own and made sure everything was soldered and connected when suddenly the AC won’t connect with the RC anymore. I tried pairing mode by pressing the power button for 4 seconds and also tried refreshing and downgrading the firmware through DJI Assit 2. But AC and RC still won’t connect. If you have any idea what to do, your advice will be of great help.