I made a small app for the Kompakt called MK Volume+.
I started working on it because I found the earpiece volume a little too quiet. After digging through the Kompakt’s MediaTek audio settings and testing on the actual phone, I found a way to raise the maximum call volume.
On my Kompakt it gives me about:
+6 dB on the earpiece
+7 dB on speakerphone
You can enable them separately, and there’s an option to reapply the settings automatically after a reboot.
This only affects call audio. It does not make music, podcasts, videos, alarms, notifications, etc. any louder.
I stopped at +6 dB / +7 dB because those levels use louder gain values that already exist in the phone’s MediaTek calibration map. Going beyond that would mean experimenting outside the device’s existing range, which I didn’t want to do.
It doesn’t require root, an unlocked bootloader, or permanent changes to system/vendor files.
One thing to keep in mind: this does push the Kompakt’s call audio past Mudita’s stock maximum, so there’s at least some chance of distortion or speaker damage if you really overdo it. Use your best judgement.
Also, I’m not a professional Android developer. This was absolutely vibe coded, with a lot of help from ChatGPT, while I learned what the code was doing and tested it repeatedly on my own Kompakt.
GitHub / source / download: GitHub - chadchad4423/MK-Volume-Plus: Call volume unlock utility for the Mudita Kompakt. · GitHub
v1.1.0 release: Release MK Volume+ v1.1.0 · chadchad4423/MK-Volume-Plus · GitHub
Direct APK download: https://github.com/chadchad4423/MK-Volume-Plus/releases/download/v1.1.0/MK-Volume-Plus-v1.1.0.apk
If you try it, please reply in this thread with a quick “worked for me” or “didn’t work for me.” That’s the most useful feedback right now.
For reproducible bugs or feature requests, please use GitHub Issues.
