How to do if one earbud is silent after connecting the Xiaomi Buds 5 Pro to the phone?

For your reference, here are the reasons about one earbud is silent:
1. Poor contact with one earbud, causing Bluetooth to only pair with one earbud;
2. One earbud has low battery and powered off;
3. The sound outlet of the earbud is blocked by dirt;
4. The earbud has been exposed to water or sweat, causing a short circuit and shutdown.
For your reference, here are the solutions about one earbud is silent:
1. Re-insert the earbuds into the charging case, confirm that the indicator on the charging case lights up, and then re-pair Bluetooth;
2. If the battery is low, ensure good contact, place the earbuds in the case for 10 minutes of charging, and pair Bluetooth again for use;
3. Check and clean the dirt in the earbuds;
4. Reset the earbuds. Place both earbuds in the charging case with the lid open, press and hold the function button for 10 seconds until the indicator flashes continuously to complete the factory reset;
5. Apply for after-sales inspection.