The intermittent USB device connected/disconnected notifications are one of the many annoying and common problems faced by Android users, especially Samsung users. They try to fix the problem to no avail. The problem only creates confusion among Android users as no obvious cause can be given, so some just leave it as it is.
However, you should be concerned about the problem because not only is there an underlying cause for it, but the notification keeps your smartphone screen on and constantly drains the battery.
Below are the possible reasons for the notification to appear and their solutions:
Check the charging port for water damage
Sometimes moisture in the charging port can trigger continuous USB connect/disconnect notifications. If your Samsung Galaxy phone has been exposed to water or high humidity (which tends to happen during summer/rainy season), it’s important to fix this as soon as possible. First, turn off your Android device to avoid any potential short circuits. Gently dab the charging port with a dry microfiber cloth and absorb any excess moisture. Do not insert any objects into the port as this may cause further damage. After making sure the port is completely dry, restart your phone and check if the issue persists. If the notifications still occur, the moisture may have caused permanent damage and you may need professional help. Perhaps visiting an official phone repair store can save your device.
Clean the charging port and check the USB cable for damage
A very common cause of repeated USB notifications is debris in the charging port or a damaged USB cable. Dust, lint, and other particles can interfere with the connection and cause erratic notifications. Gently clean the charging port with a dry microfiber cloth or soft brush to remove excess. If the charging issue persists, check your USB cable for signs of wear, such as frayed ends or bent connectors. Testing with a different cable can help determine if the original cable is defective. Also, check any OTG cables or adapters you are using, as these can also cause connection issues.
Using an incompatible charger
If you charge your phone with an incompatible charger, you may still see the connection/disconnection notification even after you unplug the charger. For example, the issue may occur if you charge your Galaxy S9 phone with a Samsung Galaxy S21 charger.
So try charging the phone with an original S9 charger, hopefully your problem will be solved.
Connect the charger and turn off the phone
If you’re constantly getting USB device connect/disconnect notifications, try this little trick: Plug in your phone’s charger and turn off the device. Once the charger is connected, turn off your phone by pressing and holding the power button until you see the shutdown option and select power off. When the phone is off, you may see the charging circle or charging indicator on the screen, which indicates that the device recognizes the charger even if it’s not fully functional. After a few moments, restart your device by pressing and holding the power button until you see the Samsung logo. This process will help reset the USB connection and may fix any temporary glitches (for some users) that might be causing the notifications.
Corrupted and outdated USB cache data
Such warnings can be the result of the accumulated corrupted and outdated USB cache data on your smartphone. Clear the USB cache data to solve the problem.
Follow the steps to clear USB cache data on your Android smartphone:
1) Go to your smartphone Settings and select Apps.
2) Click on the three dots option at the top right of the page and select Show system apps from the menu.
3) Click on USB settings from the specified system apps.
4) Select the storage and click on Clear cache.
Enable USB debugging and change the default USB settings
An Android smartphone may require a charger for a flash memory, which causes this problem. You need to change the default USB settings and enable USB debugging to make sure if this is the cause or not.
Follow the steps to enable USB debugging and change USB default settings:
1) Go to your smartphone Settings and select “About phone”.
2) Click on Software information and then seven times on Build number activate Developer options.
3) Back to Settings and select Developer options.
4) Scroll down and activate USB debugging.
5) Then scroll down again to select USB configuration.
6) Select Load from the given list.
Force a system stop
If the problem persists, you may have to resort to the last option, one of which is to abruptly stop all the main functions of your smartphone to see if that solves the problem.
The following steps will show you how to do this:
1) Go to Settings and select Apps.
2) Click on the three dots option at the top right of the page to Select system apps.
3) Click on Android system from the given list.
4) Tap forced stop
Reset your smartphone
You may have to resort to the last option, which is resetting your phone to return it to its default state. This will return all the settings to their default state, which will hopefully solve the problem.
To reset your smartphone, follow these steps:
1) Go to your smartphone Settings and select Management.
2) Select reset at the bottom.
3) Click on Reset settings and then again on Reset settings.
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