The Xiaomi Redmi Note 8 Pro is one of the most popular mid-range smartphones, but many users face the problem of quiet sound during calls, especially in noisy rooms or when using a phone in a case. Unlike the new Redmi Note 12 or POCO X5 models, where the loudspeaker has been improved software, the Note 8 Pro requires manual tuning.
In this article, we will look at all the possible ways to increase volume, from standard MIUI settings to hidden menu features and hardware modifications. It is important to understand that some methods can affect the warranty or stability of the device, so we will point out the risks for each option. If you are willing to experiment, let's go!
1. Standard volume settings in MIUI
Before you resort to radical measures, check the basic sound settings. MIUI 12/13/14 (depending on the firmware version of your Redmi Note 8 Pro) has a few hidden options that many users miss.
Open Settings → Sound and vibration. Here, pay attention to:
- 🔊 Call volume – the slider should be at maximum (sometimes reset after updates).
- 📳 Do Not Disturb – Check if it is activated on the schedule.
- 🎵 Sound effects -- turn off. MI Sound Enhancer, if it is on (can turn down the volume).
- 🔄 Adaptive sound – This feature automatically adjusts volume, but often works incorrectly.
Also on this menu is Volume for different scenarios, make sure that calls are set to Maximum, not Medium or Quiet, and if the sound is not louder after the changes, move on to the next method.
2. Engineering menu: hidden volume settings
On the Redmi Note 8 Pro (begonia model), you can manually increase the microphone volume and speaker to 150% of the standard value in the engineering menu. This method does not require root rights, but changes the system parameters, so be careful.
Instructions for entering the engineering menu:
- Open the Phone app.
- Enter the combination: ##4636###.
- Choose Hardware Testing → Audio.
- In Volume, find the parameters: Ring – volume of the call; Media – volume of multimedia; Voice Call – volume during the conversation.
150
After you make the changes, restart your phone, and if the sound gets distorted or wheezing, reduce it to 130-140.
Make sure the battery is charged > 50%|Make a backup copy of the sound settings|Record the current parameter values|Do not change other sections of the engineering menu-->
⚠️ Note: Some users note that after the update MIUI The values in the engineering menu are reset. If that happens, repeat the setting.
3. Apps to amplify sound: top-5 tested
If system methods didn't work, we could use third-party utilities, and we tested over 10 apps and selected those that actually work on the Redmi Note 8 Pro without root rights.
| Annex | Ratings. | Features | Cons |
|---|---|---|---|
| Volume Booster | 4.7 | Increases volume to 200%, there is an equalizer | Advertising can distort the sound at maximum |
| Sound Amplifier | 4.5 | It works through headphones, strengthens the microphone | Requires headphones to be connected |
| Equalizer & Bass Booster | 4.3 | Customizes frequencies, improves speaker sound | Paid version for full functionality |
| Precise Volume | 4.6 | Thin volume setting with 1% increments | A complex interface for beginners |
| Speaker Boost | 4.2 | Optimized for Xiaomi, a simple interface | Doesn't work on some firmware. |
We recommend starting with Precise Volume, as it allows you to fine-tune the volume without distortion.If you need to amplify the sound while talking, try Sound Amplifier with headphones.
⚠️ Attention: Volume Booster applications can overload the speaker, which will eventually damage it.
4.Firmware Update: Why It Can Help
In some cases, the quiet sound of the call is associated with firmware bugs. Xiaomi regularly releases updates for the Redmi Note 8 Pro, where audio problems are fixed. For example, in MIUI version 12.5.3, a volume-down bug was fixed after the reboot.
How to update firmware:
- Go to Settings → About the phone → System update.
- Click Check for updates.
- If a new version is available, download and install it.
You can also customize the individual ringtones for important contacts.
- Open Contacts and select the contact you want.
- Click Edit → The ringing melody.
- Choose a loud tune (such as MIUI Ring or download your own).
7.Extreme measures: acceleration dynamics through root
If neither of these methods worked, the last option is to root and edit system files, which is a risky option, because:
- 🚨 Warranty revoked.
- 🔄 There may be a system failure.
- 🔊 Incorrect settings will cause damage to the speaker.
If you are willing to take a risk, follow the instructions:
- Unblock Bootloader through the official Xiaomi website (account binding is required).
- Install Magisk to obtain root rights.
- Download a file manager with root support (such as Root Explorer).
- Cross the path. /system/etc/mixer_paths.xml.
- Find the RX1 Digital Volume and RX2 Digital Volume options.
- Increase the value from 84 to 92-95 (no more!).
- Save the file and restart the phone.
After that, the volume of the call will increase by 20 to 30 percent, but be prepared for possible audio distortions. If the speaker starts wheezing, return the standard values.
💡
Before you get root rights, make a full data backup via Mi Cloud or TWRP. In case of a failure, you can restore the phone.