How often should I change the Mini 2's propellers?

Hello there Jackie-Gan. Good day and thank you for reaching out. Just a reminder that before each flight, it is necessary to check your DJI Mini 2 propellers for cracks, wear, warp, corrosion, and loose screws. If any of these conditions are present, the propellers should be replaced. Damaged propellers can lead to unwanted incident when flying your DJI Drone. Thank you and fly safe always.

Thanks for the advice.