How to Fix Fast Charging Not Working on Phone?

Fast charging technologies have become an essential feature for smartphone users who depend on quick power-ups to get through their busy days. Innovations such as Qualcomm’s Quick Charge, USB Power Delivery, and various proprietary systems from different manufacturers have cumulatively advanced the fast charging experience. However, encountering issues with fast charging can be quite frustrating.

Users often report problems with fast charging shortly after purchasing their devices. With this in mind, let’s explore the most common factors that cause your phone to stop fast charging:

  • Using a charger that doesn’t support adaptive fast charging
  • A faulty adapter
  • A damaged USB cable
  • Accumulation of lint or dirt inside the micro-USB port (charging port)
  • A defective charging port
  • Fast charging disabled in the Settings
  • A software glitch

Identifying the problem requires a multi-step approach, so please follow each method in order until you either re-enable fast charging or pinpoint the issue. Let’s start.

Before Proceeding:

  1. Ensure that the charging cable is plugged in securely.
  2. Drain the battery completely until the device turns off, then charge it to 100% to reset the battery cycle, which may help resolve charging issues.
  3. If changing the USB cable doesn’t work, try using a different fast charger.

Method 1: Verifying Fast Charging is Enabled in Settings

Some phones offer the option to disable fast charging through the Settings menu. You may have inadvertently turned it off or an update could have changed this setting without your knowledge.

  1. Navigate to Settings from the App Menu.
  2. Select Battery.
  3. Scroll to the bottom and ensure that the toggle next to Fast cable charging is turned on.
  4. Try charging your phone with the original charger to see if fast charging works.

Method 2: Using a Certified Fast Charger

It’s vital to use a certified fast charger. Traditional chargers cannot enhance charging power the way certified ones do. Check the output rating on your wall charger; it should be at least 2 Amps.

Look for indications on your charger’s adapter, which may read “Adaptive Fast Charging“, “Quick Charging“, “Dash Charging“, or “Fast Charging“. If these labels are absent, you’re likely using an inadequate charger.

If your adapter supports fast charging, move on to the next method.


Method 3: Trying a Different USB Cable

Often, a USB cable can fail before the adapter. A defective cable can prevent fast charging yet allow standard charging.

Replace the cable while using the same wall charger. If the phone begins to fast charge, replace the faulty USB cable. If not, test this charger and cable combination with another fast-charging compatible device. If it doesn’t work on another device, the charger is likely the problem.


Method 4: Removing Lint/Dirt Accumulation

If previous methods haven’t worked, check your charging port for debris, as this can obstruct electric transfer.

  1. Inspect the micro-USB port with a flashlight for any foreign matter.
  2. Power OFF the phone and use tweezers, a needle, or a toothpick to carefully remove any large debris.
  3. Moisten a cotton swab with rubbing alcohol.
  4. Gently clean the charging port with the cotton swab.
  5. Allow your phone to dry for a couple of hours before powering it on again.
  6. Try charging again to see if fast charging is resolved.

Method 5: Charging in Safe Mode

If fast charging is still not working, a software conflict could be to blame. Test the charging in Safe Mode, where only preloaded apps are active.

  1. Press and hold the Power button while your phone is on.
  2. In the power options menu, tap and hold the Power off option.
  3. A prompt should appear for rebooting in safe mode; tap OK.
  4. The Safe Mode icon should be visible in the bottom-left corner, indicating you’re in safe mode.
  5. While in Safe Mode, charge your phone and check for fast charging capability.

If fast charging works in Safe Mode, there’s likely an app causing the issue. Uninstall any recent apps you suspect, especially battery management apps, and then exit Safe Mode to see if the problem is resolved.

Method 6: Performing a Factory Reset

Should removing suspicious apps not restore your fast charging feature, a factory reset is the last step before considering a repair. Remember, a factory reset will erase all your personal data on the device, so it’s critical to back up your data beforehand.

  1. Access Settings > Advanced settings.
  2. Tap on Backup & reset. Ensure your device is backed up before proceeding.
  3. Scroll down and select Factory data reset.
  4. Choose Reset Phone and wait for the process to finish.
  5. Once your phone restarts, check if fast charging is functioning normally.

Method 7: Clearing Cache

Faulty cache retention in the USB drivers could cause fast charging issues.

  1. Slide down the notifications panel and select the “Settings” button.
  2. Click on the “Applications” option.
  3. In the top right corner, select the “Three Dots” and then click on the “Show System Apps” button.
    Tapping on the “Show System Apps” option
  4. Select “USB Setting” and/or “USB” from the list.
  5. Click on the “Storage” option after selecting and click on the “Clear Data” button.
  6. Also, click on the “Clear Cache” button and restart the phone.
    Tapping on the “Clear Cache” button
  7. Check to see if the issue persists.

Method 8: Disabling USB Debugging

USB debugging mode can sometimes interfere with fast charging:

  1. Drag down the notifications panel and click on the “Settings” option.
    Dragging down the notifications panel and tapping on the “Settings” option
  2. Scroll down and click on “System”.
  3. Select the “Developer Options” button and then click on the “USB Debugging” toggle to turn it off.
  4. After disabling, check to see if the issue persists.

By following these steps, you should be able to resolve any fast charging issues and get your smartphone powered up quickly once again.


Kevin Arrows

Kevin Arrows is a highly experienced and knowledgeable technology specialist with over a decade of industry experience. He holds a Microsoft Certified Technology Specialist (MCTS) certification and has a deep passion for staying up-to-date on the latest tech developments. Kevin has written extensively on a wide range of tech-related topics, showcasing his expertise and knowledge in areas such as software development, cybersecurity, and cloud computing. His contributions to the tech field have been widely recognized and respected by his peers, and he is highly regarded for his ability to explain complex technical concepts in a clear and concise manner.