Hi
I turned on my drone after not using it for some time
my drone is a DJI Mini 2
They made me download a new application ( dji drone ) for the Android system 13, my cell is Realme UI 4.0. When I want to fly, the drone stays with red lights, in the app apparece NULL 255 and I can't fly.
Can you help me?  

The ONLY official app for the DJI Mini 2 is DJI Fly. It cannot be found in the Google Play store. It can only be downloaded from DJI HERE



When you install it, you will need to go into your settings and allow third party apps.

Hi there. Sorry about the trouble. Are you using the official app? It's the DJI Fly app that you can download for free on the DJI official website if you are using an Android phone. Please click the link to download it: https://www.dji.com/downloads/djiapp/dji-fly . Also, if it's fine, can you show us a screenshot of the error from your app? Thank you.