Here’s a very simple and suddenly very easy solution on how to fix sound issues on Xiaomi Redmi 4, Redmi 4 Prime / Pro phones.
Official Redmi 4 firmware: the latest MIUI 10 Recovery and Fastboot ROMs for all regions (2), direct from Xiaomi's servers with file checksums.
Reduce noise and fix sound on Redmi 4 Pro during a call
The solution is very simple: try to disable pop-up notifications during a calls.
- Go to the “Settings”.
- Then “Notifications”.
- “Application notifications”.
- Open “Phone”.
- Disable pop-up notifications.
The irritating sound should be gone now!
Xiaomi no longer updates the Redmi 4
Xiaomi has ended software updates for the Redmi 4, so no new firmware is expected. For new Xiaomi firmware, HyperOS 4 news and guides, follow our Telegram channel.

![[Guide] How to fix Redmi 4 sound issues during a call](https://xiaomifirmware.com/wp-content/uploads/2017/03/Reduce-noise-and-fix-sound-on-Redmi-4-Pro-during-a-call-768x576.png)