Fix Invalid IMEI Samsung Galaxy S4

If you’re experiencing the frustrating issue of your Samsung Galaxy S4 not turning on, you’re not alone. Many users encounter this problem, and it can be caused by a variety of factors such as a drained battery, hardware issues, or software glitches. In this comprehensive guide, we’ll provide you with step-by-step troubleshooting solutions to help you resolve the issue and get your device up and running again.

Performing a Soft Reset

One of the first steps you should take when your Samsung Galaxy S4 won’t turn on is to perform a soft reset. This process helps to drain any residual electricity stored in the capacitors and electronic components of the device. Here’s how you can do it:

  1. Remove the back cover and battery: Start by taking off the back cover of your Galaxy S4 and carefully remove the battery.
  2. Press and hold the power button: While the battery is removed, press and hold the power button for approximately one minute. This will help discharge any remaining electricity.
  3. Reinsert the battery: After one minute, place the battery back into the device.
  4. Attempt to turn on the Galaxy S4: Now, try turning on your phone by pressing the power button.

Performing a soft reset is a simple yet effective troubleshooting procedure that can often resolve the issue of a Galaxy S4 not turning on. This method does not delete any data, so you don’t have to worry about losing your files, apps, or contacts.

Charging the Device

If your Galaxy S4 still refuses to turn on after performing a soft reset, the next step is to ensure that your device is properly charged. A drained battery can prevent the phone from powering on. Follow these steps to charge your Galaxy S4:

Connect the charger: Plug the charger connector into your phone and the charger itself into a wall socket. It’s recommended to use the original Samsung charger, but any compatible charger should work.

Look for charging indicators: Your phone should display a charging icon or an LED notification that glows red. If you don’t see any indication of charging, leave the phone connected to the charger for at least ten minutes.

Check for heat: After charging for ten minutes, touch the phone to see if it heats up significantly. If it does, it could indicate a battery or USB charging port issue, and it’s advisable to seek professional help. However, if the phone remains cool or heats up only minimally, continue to the next step.

Try turning on the phone: Press the power button to see if the phone boots up. If it doesn’t respond initially, try a few more times before proceeding to the next troubleshooting step.

Booting in Safe Mode

To further diagnose the problem and determine if it’s a software-related issue, you should try booting your Galaxy S4 in Safe Mode. Safe Mode disables all third-party apps, allowing you to determine if a specific app is causing the problem. Follow these steps to boot your device in Safe Mode:

Press and hold the Power button: Start by pressing and holding the power button until the Samsung Galaxy S4 logo appears on the screen.

Release the Power button: Once the logo appears, release the power button.

Press and hold the Volume Down button: Immediately after releasing the power button, press and hold the volume down button.

Continue holding the Volume Down button: Keep holding the volume down button until the phone completes the reboot process.

Check for Safe Mode: If you see the words “Safe Mode” at the bottom left corner of the screen, release the volume down button. If not, repeat the process until you successfully boot into Safe Mode.

If your Galaxy S4 successfully boots up in Safe Mode, it indicates that a third-party app may be causing the problem. Restart your phone to see if it boots up normally. If it does, you can start identifying and uninstalling recently installed apps that may be causing the issue.

Booting in Recovery Mode

If your Galaxy S4 doesn’t boot up in Safe Mode or gets stuck on the boot logo, it’s time to try booting it in Recovery Mode. Recovery Mode allows you to perform advanced troubleshooting steps such as wiping the cache partition or performing a factory reset. Here’s how you can boot your device in Recovery Mode:

Turn off the phone: Start by completely turning off your Galaxy S4.

Press and hold the Volume Up, Home, and Power buttons: Simultaneously press and hold the volume up, home, and power buttons.

Release the Power button: When the phone vibrates, release the power button while still holding the volume up and home buttons.

Access the Android System Recovery screen: You should now see the Android System Recovery screen.

Highlight “Wipe Cache Partition”: Use the volume down button to highlight the option “wipe cache partition.”

Select the option: Press the power button to select the highlighted option.

Wait for the cache data to be wiped: The phone will automatically restart once the cache data is wiped out.

If your Galaxy S4 boots into Recovery Mode successfully but still doesn’t restart after wiping the cache partition, you can try performing a factory reset. Keep in mind that a factory reset will erase all data on your phone, so it’s crucial to back up your files before proceeding.

Seeking Professional Help

If none of the previous troubleshooting steps have resolved the issue, and your Galaxy S4 still won’t turn on, it’s recommended to seek professional assistance. At this point, it’s possible that there may be a hardware issue with your device that requires expert attention. Contact your phone manufacturer or visit an authorized service center to have your phone inspected and repaired.


Dealing with a Samsung Galaxy S4 that won’t turn on can be frustrating, but with the right troubleshooting steps, you can often resolve the issue. Start by performing a soft reset and then try charging your device. If those steps don’t work, booting in Safe Mode or Recovery Mode can help identify and resolve software-related issues. If all else fails, it’s best to seek professional help. By following these steps, you’ll increase your chances of getting your Galaxy S4 back up and running without losing any crucial data.


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