How to Fix USB Connector Disconnected Notification on Android

Quick Tips

• Open Settings > Apps > Filter and sort icon > turn on Show system apps toggle > OK > USBSettings > Storage > clear cache and data.
• Go to Developer options in Settings > turn on USB debugging toggle > Default USB configuration > select Charging phone only.
• Ensure you’re using the official brand charger when charging your Android phone.

Why Is My Phone Saying USB Connector Connected and Disconnected?

Before troubleshooting this issue, let us quickly look at why you might see this error on your Samsung Galaxy and Android devices.

• You forgot to detach the USB cable from your phone. Or have left the USB cable attached to the phone without plugging the other end into a socket or device.
• There is debris in the USB port, causing it to send out false notifications.
• A software bug is causing USB notifications to appear randomly.
• The charger you’re using is of a lower voltage or incompatible with your device.
• Configuration issues with your device’s USB port.
• The cache for USBSettings is corrupted, thus sending out USB disconnected/connected notifications without being plugged in.

Basic Fixes:

• Unplug the cable when finished charging: Keeping your phone connected to a USB cable even after turning the power off might trick your device into thinking you’re constantly disconnecting and connecting the cable. So, always disconnect the USB cable from your device when not in use.
• Clean the USB port: Your device’s USB port can accumulate dirt and debris, like lint, dust, etc. In this case, take a soft cloth or a sharp pointed object like a pin and use it to gently clean the port. Ensure to clean around the port as well.
• Restart your device: The disconnected/connected popup on your device might be due to a glitch. In this case, you can restart your device and check again. This will help resolve any temporary bugs or glitches on your Android device.
• Check for software updates: Another reason for your device to constantly show the USB disconnected/connected notification can be a system bug in your Android device’s OS. In this case, check and install the latest software updates. 

Fix 1: Clear Cache and Data for USB Settings

Your device’s USB settings also collect cache to improve performance. However, if this cache gets corrupted, it can cause your device to show disconnected/connected warnings constantly. To fix this, clear the cache and data for the USB settings on your Android device. Follow the below steps to do it.

Step 1: Open Settings and tap on Apps. Tap on the Filter and sort icon.

Step 2: Turn on the Show system apps toggle and tap on OK. Tap on USBSettings.

Step 3: Tap on Storage and tap on Clear cache.

Step 4: Then, tap on Clear data. When prompted, tap on Delete.

This will clear the cache and delete all the data for USB settings on your Android device. Once done, try connecting and disconnecting your device to USB.

Fix 2: Ensure USB Charging Is Selected

If your device is set to recognize USB for anything other than charging, it might trigger a constant disconnect/connect notification once you disconnect the charger. If so, use the developer options and set it to recognize the USB to charge the phone. Here’s how.

Step 1: Open Settings and tap on About phone. Tap on Software information and tap on Build number five or seven times quickly.

Step 2: Enter your device PIN or password and go back to the main Settings menu.

Step 3: Tap on Developer options and turn on the toggle for USB debugging.

Step 4: Go to the Networking section and tap on Default USB configuration. Select Charging phone only.

Also Read: How to fix Android “Developer Options” not showing up

Fix 3: Use the Official Charger

If you have been using another brand’s charge, it might cause issues over time as the charger’s energy output might not be enough for your device. We recommend using the official brand original charger when charging your Android phone.