If there is no sound when using the REDMI Buds 8 Lite for calls, please refer to the following steps to troubleshoot:
1. If the call volume is too low, there will be no sound when using the REDMI Buds Lite for calls. Please check the call volume and increase it.
2. Please verify that the call audio in Bluetooth is enabled by going to [Settings]. If not, there will be no sound when using the REDMI Buds Lite for calls.
3. If the earbuds are connected to two devices simultaneously, audio channels can be occupied. Disconnect the other device and try again.
4. A corrupted Bluetooth cache can cause call audio issues. You can clear the Bluetooth cache, restart your phone, and re-pair the earbuds to check if there is sound using the REDMI Buds 8 Lite for calls.
5. If the firmware is outdated, it can cause system bugs affecting call audio. You can update the earbuds to the latest firmware.
6. You can reset the earbuds and reconnect them to your phone to check if there is sound.
7. If none of the above steps resolve the issue, please contact our local official after-sales service center for further assistance.