How to fix boot loop for my Samsung S9 phone?

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How to fix boot loop for my Samsung S9 phone?

I recently encountered a frustrating issue with my Samsung S9 phone. It seems to be stuck in a boot loop, where it continuously restarts on its own without ever fully booting up. I rely heavily on my phone for both personal and professional tasks, so this has been a major inconvenience.
I’ve tried the basic troubleshooting steps like holding down the power button to force a restart, but nothing seems to work. My phone just keeps cycling through the Samsung logo and then turns off again. It never reaches the home screen where I can actually use it. I’m starting to get desperate because I can’t access any of my important data or apps.
I’ve heard that this issue might be related to software glitches or perhaps a corrupted update, but I’m not sure how to diagnose the root cause properly. There might be more advanced options, but I’m worried about losing my data if I try something drastic.
Could someone help guide me through the process of fixing this boot loop, preferably with methods that might allow me to salvage my data? Any detailed steps or advice from someone who has successfully resolved this issue would be greatly appreciated.

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6 Answers

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For a more advanced solution, you can flash the firmware using Odin. Follow these steps carefully:

  1. Download Odin and the firmware specific to your Samsung S9 model.
  2. Put your phone in Download Mode by holding the Volume Down, Bixby, and Power buttons together, then pressing Volume Up when prompted.
  3. Connect your phone to your computer and launch Odin.
  4. Load the firmware files into their respective fields in Odin (BL, AP, CP, CSC).
  5. Click ‘Start’ and wait for the flashing process to complete.

Flashing the firmware can reinstall the device’s software, potentially fixing the boot loop issue. Ensure you follow the instructions carefully to avoid any complications.

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Though the Samsung S9 has a non-removable battery, you can try a soft reset that mimics a battery pull. Here’s what you need to do:

  1. Turn off your phone.
  2. Press and hold both the Volume Down and Power buttons together for about 10 seconds.
  3. While holding these buttons, plug the phone into a power source using its charger.
  4. Release the buttons when the Samsung logo appears.

This method can help restart your device by resetting its power cycle, potentially resolving minor software glitches responsible for the boot loop.

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If you suspect that a third-party app might be the culprit, you can boot your Samsung S9 in Safe Mode to check. Here’s how:

  1. Turn off your phone.
  2. Power it back on, and when the Samsung logo appears, press and hold the Volume Down button.
  3. Keep holding the Volume Down button until the device finishes restarting.
  4. ‘Safe Mode’ will appear in the bottom left corner of the screen.

If your phone boots up normally in Safe Mode, then a third-party app is likely causing the issue. You can uninstall suspicious apps one by one until the boot loop problem is resolved.

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I faced a similar issue with my Samsung S9 and found that performing a factory reset fixed the boot loop. Be aware that this process will erase all your data, so backing up is essential. Here’s how to do it:

  1. Turn off your phone.
  2. Hold down the Volume Up, Bixby, and Power buttons simultaneously.
  3. When the Android system recovery screen appears, release all buttons.
  4. Use the Volume Down button to navigate to ‘Wipe data/factory reset’ and select it with the Power button.
  5. Confirm the action by highlighting ‘Yes’ and pressing the Power button.
  6. After the reset is complete, choose ‘Reboot system now.’

This action will restore your device to its original settings, potentially resolving the boot loop issue.

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You can try using Samsung’s Smart Switch software to perform an emergency software recovery. Here are the steps:

  1. Download and install Samsung Smart Switch on your computer.
  2. Open Smart Switch and connect your phone to the computer via a USB cable.
  3. Once your device is recognized, click on the ‘More’ menu and select ‘Emergency software recovery and initialization.’
  4. Follow the on-screen instructions to complete the process.

This method reinstalls the firmware on your phone, and it might resolve the boot loop without causing data loss.

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Clearing the cache partition can often resolve boot loop issues without erasing your personal data. Here’s what you need to do:

  1. Power off your Samsung S9.
  2. Press and hold the Volume Up, Bixby, and Power buttons simultaneously.
  3. When the Android logo appears, release all the buttons.
  4. Use the Volume Down button to navigate to ‘Wipe cache partition’ and select it with the Power button.
  5. Confirm the action by selecting ‘Yes.’
  6. Once the process finishes, choose ‘Reboot system now.’

This should help get your phone out of the boot loop state and back to normal operation.

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