QCC Causing High Battery Drain on Samsung S Series Phones

[HaiderAwan057]

Many Samsung devices (including S24 Ultra) show QCC (Qualcomm Connectivity Core) at the top of battery usage.

This usually happens when Bluetooth gets stuck in a reconnect loop — especially after switching earbuds between devices.
A normal restart doesn’t clear it because QCC is a system service.

If QCC keeps running even with Bluetooth off, use the advanced ADB reset below.

Tools Needed

 

Download Android Platform Tools (ADB) from Google:
https://dl.google.com/android/repository/platform-tools-latest-windows.zip

 

Unzip it to a folder such as:
C:platform-tools

Advanced QCC Reset (ADB Method)

 

1. Enable Developer Options

 

Settings → About phone → Software information → tap Build number 7 times.

 

2. Enable USB Debugging

 

Settings → Developer options → USB debugging → ON.

3. Connect Phone to PC (File Transfer Mode)

Open Command Prompt inside the platform-tools folder.

4. Run These Commands:

adb devices
adb shell
pm clear com.qti.qcc

 

If it shows Success, the QCC service has been reset.

5. Reboot the Phone

 

Turn Developer Options OFF afterward.

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My phone is sumsung S21 FE

[HaiderAwan057]

Same process