The Samsung Galaxy S9+ is a high end device on which you can smoothly run all the apps and processes that you want. But, since the Android OS is an open source platform and since you are definitely going to install and use various software and third party tools on your smartphone, from time to time, you will end up in experiencing software related problems. And then is when the hard reset will be more than useful for you and for your Samsung Galaxy S9 Plus.

Mainly that’s why you should learn how to complete the hard reset process, even though, as you will see if you choose to read all the lines from below, this operation comes with different other advantages. Shortly, the hard reset will help you smartly manage different situations that might mess up the Android core system.

Right from the start you need to know what will happen on your Galaxy S9+ once the hard reset (or the factory reset process as both terms are the exact same thing) operation is applied. So, this process will wipe everything that wasn’t there from day one on your phone. The result is that you will manage to partially restore your device back to its factory state: only built-in apps and features will remain installed on your handset in the end.

So, how is a full wipe going to help you fix problems and resolve other issues? Well, for example if software related issues are experienced, the hard reset operation will remove what was causing the problems in the first place – let me explain this aspect for you: a full wipe will erase, along your personal files, third party apps, unresponsive processes, malware, malicious apps, inappropriate tools and similar other packages that might cause malfunctions on your Samsung Galaxy S9 Plus; thus, in the end, by using this tutorial you can successfully address general problems like boot loops, lags, hangs, screen freeze, battery drain, heating problems, signal strength issues, total blackouts and so on.

In other situations the hard reset operation will be required during tweaking processes. For example, a custom ROM firmware (like Lineage OS, AOKP or Paranoid Android) can be flashed on your Galaxy S9+ only if a full wipe is applied first – a new system cannot run smoothly if there are apps and processes related with the old ROM still installed on your phone’s internal storage memory.

A factory reset can also help you protect your data if you are planning to sell your smartphone – of course, in that case a backup is a must. And, a full wipe can speed things up when you notice that your phone isn’t running as fast as it used too – usually, that happens when there are many apps and processes installed on your smartphone so, from time to time, a cleaning operation should be initiated in order to refresh the Android platform.

As you can tell, if you have important files stored on your smartphone you should now initiate a general backup. That’s the only way in which you can secure your personal data, info, accounts and files – among general packages you should also save contacts, call logs, texts, images, videos, audio files, market apps, internet settings, calendar info, saved passwords, EFS folder, IMEI / NVRAM data and other files that might be still required afterwards. On your S9 Plus you can save files by using built-in cloud storage services, or by syncing your data with your Google Account; another way in which you can complete this process is by using backup and restore apps from Google Play – if you do that make sure you choose only already tested apps.

Before starting the hard reset, you should charge your Samsung Galaxy S9+. If the power is low, chances are your device will get turned off in the middle of the wiping process. And if a sudden shut down operation happens, different problems might get caused within the Android core system. So, try to avoid unpleasant situations by plugging in the charger if the power left is currently lower than 50%.

Completing the hard reset operation will be an official process – the steps from below are supported by your OEM so KNOX won’t get tripped and you won’t have to use complex or risky programs in order to resume these steps. Additionally, the hard reset can be performed even if your Samsung Galaxy S9+ was tweaked – if root was ensured, if an unlocked bootloader is running or even if a custom recovery image was installed.

How to Hard Reset the Samsung Galaxy S9+

By using recovery mode

  1. Begin the hard reset by switching off your Android based device.
  2. Wait a few moments until this shut down operation is completed.
  3. Next, press and hold the Power, Volume Up and Bixby buttons, for a few moments until the recovery mode menu appears.
  4. In recovery use Volume rocker keys in order to scroll up and down and the Power button to select.
  5. From recovery choose ‘wipe data factory reset’ and confirm.
  6. Wait while the wiping operation is automatically completed.
  7. When it’s done, go back to main menu of recovery.
  8. Choose ‘reboot system now’.
  9. That’s all.

By using built-in settings

  1. Built-in settings must be used, so first of all power on your handset.
  2. From your home screen tap on Menu and navigate towards Settings.
  3. Next, find and select General Management and from there just pick up the Reset option.
  4. From the next window tap on Factory Data Reset.
  5. Choose Reset again and then pick Delete All.
  6. The factory reset will be now completed.
  7. Reboot your phone in the end.


Good work. You now know how to complete the hard reset on your Samsung Galaxy S9+. You can share your observations regarding the steps from above by using the comments field from down below. If you have problems, or questions, based on what you share with us, we will try to assist you as soon as possible. For further similar tutorials and Android related tips and tricks, don’t hesitate and check out our ‘how to’ section.

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