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How To Reset Samsung Galaxy J4 (2018) Lock Screen, Hard and Factory Reset

In this tutorial you will find detailed instructions on how you can reset Samsung Galaxy J4 (2018) to its original configuration by using factory and hard reset feature.

The Samsung J4 (2018) flaunts a 5.5-inch Super Amoled HD (720 x 1280 pixels) display and features a back fingerprint sensor. Inside the smartphone, there is a 1.4 GHz Quad-Core processor aided by 2GB of RAM and ARM Mali-T720 GPU placed upon Exynos 7 Quad 7570 chipset. The handset runs on Android 9.0 OS (with ONE UI on top).

Even though the Samsung J4 (2018) uses the latest Android OS, over time, you can come across a lot of problems. You may experience problems starting or shutting down, excessive memory usage, performance running apps, battery draining quickly, among many other issues, and when any of this happens, resetting to factory settings will come in handy.

Performing a hard and factory reset will wipe all data like your files, contacts, call log, messages stored on the internal storage and all 3rd-party apps and app updates.

Bypass Lock Screen Pin / Pattern / Password Samsung J4 (2018)

If you’re trying to reset your Galaxy J4 (2018) because you’ve forgotten your lock screen pattern, password, fingerprint and pin, there are a couple of options to reset lock screen your phone remotely.

You’ll need to be signed into your Samsung and Google account on your phone, and must have either a Wi-Fi or mobile data connection.

Reset Lock Screen with Google Find My Device

  • Visit https://www.google.com/android/find and then sign in with your Google Account and password.
  • Select the Samsung J4 (2018) from the top left hand corner of the menu.
  • Select the “Erase Data” option from the action menu.
  • Select “Erase Device” to confirm.
  • Enter your Google Account password to reset the phone.

Unlock Screen with Samsung Find My Mobile

  • Visit Find My Mobile and then log in with your Samsung Account ID and password.
  • Select the Samsung Galaxy J4 (2018) from the menu on the left.
  • Select the “Erase Device” option from below the device information.
  • Select the ‘Eraseʼ button on the popup.
  • Enter your Samsung Account password to confirm and send the task to your phone.

Hard reset Samsung J4 (2018)

Turn off your Samsung J4 (2018) and wait a few seconds. If your phone is locked and you can’t turn it off, You can wait for the battery to drain and try resetting these steps after recharging

Press the “Power” and “Volume Up” button together till the device displays the start-up logo.

Once the Samsung J4 (2018) logo is displayed, release the buttons and wait till the device enters the Android system recovery mode.

On the displayed screen, use “Volume Down” button to go to the “Wipe data/factory reset” option (Volume Up and Volume Down buttons are used to highlight the displayed options on the Android system recovery screen).

Once the option is highlighted, press the “Power” button to select the option. (Pressing the Power button in Android system recovery mode selects the highlighted option.)

On the next screen, press the “Volume Down” button multiple times till the “Yes” option is highlighted.

Press the Power button to hard reset the Galaxy J4 (2018), which will also clear the dalvik cache.

Factory reset Samsung J4 (2018) via Settings

Android Pie

  • Slide your finger downwards starting from the top of the screen.
  • Tap the ‘Settingsʼ icon.
  • Touch ˊGeneral managementˋ.
  • Touch ‘Resetʼ.
  • Tap ˊFactory data resetˋ.
  • Touch “RESET”.
  • Touch ‘DELETE ALLʼ. Wait a moment while the factory default settings are restored.
  • Follow the instructions on the screen to set up your Galaxy J4 (2018) and prepare it for use.

Android 10

  • Head into your “Settings” and scroll down the page to ˊGeneral managementˋ.
  • Tap on ˊResetˋ.
  • Press “Factory data reset”.
  • Scroll down the page and select ˊResetˋ.
  • This is the final step, so be sure that you want to go through with it. If you are, then tap “DELETE ALL”.
  • The Samsung Galaxy J4 (2018) will automatically reset and reboot.


The Galaxy J4 (2018) is a mid-ranged device from Samsung that offers users the best features and a premium smartphone experience. The cameras on the device are great for clicking pictures under any condition. It has a massive battery capacity which can provide enough power to give day-long backup. The strong configuration of the device ensures that it can easily manage multitasking as well as run high-graphic centric games.

Despite some problems here and there, the Samsung Galaxy J4 (2018) is still a great phone. Do you have any problems that you didn’t see above? Leave a comment below, and we’ll troubleshoot the issue with you. For other tips and tricks such as how to update Samsung Galaxy J4 (2018), we will publish it soon.