How to fix Galaxy A70 screen flickering | troubleshoot screen not working properly

One of the less common problems in Android devices is screen flickering issue. In this post, we provide solutions for those who have screen flickering on their Galaxy A70 devices. If you’re one of them, find out the solutions that you can try to fix it.

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How to fix Galaxy A70 screen flickering | troubleshoot screen not working properly

Is your Galaxy A70 screen flickering? This may be caused by either an issue with the software, app, or hardware. Learn how to troubleshoot this problem by following our suggestions below.

Galaxy A70 screen flickering solution #1: Check for hardware damage

Most forms of screen problems including the one we’re trying to fix right now usually follow after a device was dropped or physically damaged. If your Galaxy A70 screen started flickering after you dropped or physically damaged the phone, repair may be necessary to fix the issue for good. In this case, you want to bring the device to Samsung Service Center so it can be examined.

If screen flickering issue happened out of the blue and there was no chance that the device was physically damaged, it’s possible that the problem may be caused by a bad app, unknown software bug, or by poor coding. To see if you can fix it on your level, continue with the troubleshooting below.

Galaxy A70 screen flickering solution #2: Perform forced reboot

If you are positive that your phone was not physically damaged or exposed to elements (too much cold or heat), the next move that you want to do is to refresh the system. The problem may be caused by a temporary bug. Minor problems caused by such bugs usually go away after restarting a device. If you haven’t tried it yet be sure to do so.

In restarting, we suggest that you simulate the effects of a “battery pull” rather than do a usual restart. This will ensure that the device is refreshed and its RAM cleared. Here’s what you need to do:

  1. Press and hold the Power + Volume Down buttons for approximately 10 seconds or until the device power cycles. Note: Allow several seconds for the Maintenance Boot Mode screen to appear.
  2. From the Maintenance Boot Mode screen, select Normal Boot. Note: Utilize the volume buttons to cycle through the available options and the lower left button (below the volume buttons) to select. Also, allow up to 90 seconds for the reset to complete.

Galaxy A70 screen flickering solution #3: Refresh system cache

If the Galaxy A70 screen flickering issue happened after an update or app installation, there may be a problem with the system cache. This is a special cache that Android uses to load apps quickly. If this cache gets corrupted, some apps or the entire system may act sluggishly or erratically. Try to clear the cache partition to refresh the system cache.

  1. Turn off the device.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).
  4. Press the Volume down key to highlight “wipe cache partition.”
  5. Press the Power key to select.
  6. Press the Volume down key to highlight “yes” and press the Power key to select.
  7. When the wipe cache partition is complete, “Reboot system now” is highlighted.
  8. Press the Power key to restart the device.

Galaxy A70 screen flickering solution #4: Run on Safe Mode and observe

In other cases, flickering screen issue can be a result of a poorly coded app. This is sometimes seen with games that tries to adjust incorrectly a phone’s display settings. If your Galaxy A70 flickering screen issue won’t go away after clearing the cache partition, you can then restart it to safe mode. While on safe mode, check for the problem by letting the phone run a few apps for at least 30 minutes. If the screen works normally on safe mode, you can bet one of your apps is to blame.

Follow these steps to put your Galaxy A70 to safe mode:

  1. Turn the device off.
  2. Press and hold the Power key past the model name screen.
  3. When “SAMSUNG” appears on the screen, release the Power key.
  4. Immediately after releasing the Power key, press and hold the Volume down key.
  5. Continue to hold the Volume down key until the device finishes restarting.
  6. Safe mode will display in the bottom left corner of the screen.
  7. Release the Volume down key when you see Safe Mode.
  8. Once on safe mode, try to charge the phone for at least 30 minutes and see what happens.

Remember, this troubleshooting step only covers third party apps. All preinstalled apps will continue to run on safe mode. If the screen works normally on safe mode but not on regular mode, you must narrow down the suspect apps using elimination method. Here’s how:

  1. Boot to safe mode.
  2. Check for the problem.
  3. Once you’ve confirmed that a third party app is to blame, you can start uninstalling apps individually. We suggest that you begin with the most recent ones you added.
  4. After you uninstall an app, restart the phone to normal mode and check for the problem.
  5. If your Galaxy A70 is still problematic, repeat steps 1-4.

Galaxy A70 screen flickering solution #5: Adjust screen brightness

When it comes to flickering screen issue checking brightness level is usually one of the basic things to do. If none has worked so far, try pull screen brightness all the way down, then shut the phone off. After a few moments, power the phone back on and see if the screen is stable. Then, increase screen brightness again and observe.

Galaxy A70 screen flickering solution #6: Check for updates

Some bugs are caused by poor coding and most of the time, these types of issues are only fixable by updates. If you haven’t tried updating both the OS and apps, be sure to do that at this point.

Galaxy A70 screen flickering solution #7: Factory reset

The final resort that you can try is factory reset. This helps if the cause of the problem is software in nature. Factory reset will wipe all your personal data so be sure to back your files up before doing it. Below are the two ways to factory reset your Galaxy A70:

Method 1: How to hard reset on Samsung Galaxy A70  via Settings Menu

This is the easiest way to wipe your Galaxy A70. all you have to do is to go under Settings menu and follow the steps below. We recommend this method if you have no trouble going under Settings.

  1. Create a backup of your personal data and remove your Google account.
  2. Open Settings app.
  3. Scroll to and tap General management.
  4. Tap Reset.
  5. Select Factory data reset from the given options.
  6. Read the information then tap Reset to continue.
  7. Tap Delete All to confirm action.

Method 2: How to hard reset on Samsung Galaxy A70 using hardware buttons

If your case is that the phone is not booting up, or it boots but Settings menu is inaccessible, this method can be helpful. First, you need to boot the device to Recovery Mode. Once you successfully access Recovery, that’s the time that you begin proper master reset procedure. It may take some tries for you before you can access Recovery so be patient and simply try again.

  1. If possible, create a backup of your personal data ahead of time. If your problem prevents you from doing that, then simply skip this step.
  2. Also, you want to make sure that you remove your Google account. If your problem prevents you from doing that, then simply skip this step.
  3. Turn off the device. This is important. If you can’t turn it off, you’ll never be able to boot to Recovery Mode. If you are not able to shut the device off regularly via the Power button, wait until the phone’s battery is drained. Then, charge the phone for 30 minutes before booting to Recovery Mode.
  4. Press and hold the Volume Up button and the Bixby button at the same time.
  5. While still holding the Volume Up and Bixby keys, press and hold the Power button.
  6. The Recovery screen menu will now appear. When you see this, release the buttons.
  7. Use the Volume Down button until you are highlighting ‘Wipe data/factory reset.’
  8. Press the Power button to select ‘Wipe data/factory reset.’
  9. Use Volume Down to highlight Yes.
  10. Press the Power button to confirm factory reset.

Galaxy A70 screen flickering solution #8: Get it repaired

If all the suggested device troubleshooting did help at all, it’s time that you consider letting Samsung examine the device. Screen flickering can sometimes be a result of poor quality screen assembly and there’s no way an end user like you can know that. The general rule is that, if all software solutions fail, then bad hardware must be the reason for the problem.

 


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