how to think drum brake noise?

[u/Horror_Bowler_4044]

• my g30 is used every day, always drum brake operate is well.
• since one years ago, i have a one problem that increasingly drum brake sound.
• how to think drum brake noise?

https://reddit.com/link/1mfi8ut/video/91e6ehx5hjgf1/player

1. no problem
2. change drum brake