hi, I have a big problem with my DJI Mini1, when I start my drone, it starts normally then it starts flashing red and green slowly, and it does not connect to the remote control. I tried pairing mode but couldn't activate it, I tried to format the micro SD but that doesn't work either. Does anyone have a solution?

Hello there. I'm sorry about the trouble.  Can you please check the notes below and see if it will help?
1. Please check whether the aircraft and remote controller both are powered on.
2. Please check whether the aircraft has a microSD card. If yes, remove the microSD card and try linking again.
3. Please switch the linking method between “Linking with the app” and “Linking with combination buttons”.
Remote controller: Press and hold the Power button on the remote controller for four seconds to prepare to link.
Aircraft: Press and hold the Power button on the aircraft for four seconds to prepare to link.
4. If it is invalid, check whether the remote controller has been updated to the latest version. Connect the remote controller to the app. After the connection is successful, check whether there is a prompt to update the firmware. If yes, update the firmware to the latest version and try linking again.
5. If the issue persists, please connect the aircraft to the computer, check the aircraft firmware version in the DJI Assistant 2 (do the same with the controller), and try linking after updating or refreshing the aircraft’s firmware to the latest version.
Please keep us posted. Have a great day.