How To Fix Failure of Samsung Galaxy Note 9 Iris Scanner after Software Update

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In this article, we will be discussing how to fix the failure of the Samsung Galaxy Note 9 iris scanner after the software update issue.  Samsung Galaxy Note 9 is an Android-based phablet designed, developed, produced, and marketed by Samsung Electronics as part of the Samsung Galaxy Note series. It is one of the most popular Android smartphone models available in the market and was awarded the “Best Phone of the Year” award by Consumer Reports.

Outstanding features in Samsung Galaxy Note 9

6.4 inch Super AMOLED display, dual 12MP rear cameras, and a Snapdragon 845 processor paired with 8GB of RAM are few specifications Samsung Galaxy Note 9 can do. Even though this is a well-performing device, sometimes different problems can happen which we will be discussing here.

How To Fix Samsung Galaxy Note 9 Iris Scanner Not Working After Software Update

Problem:

On February 19, I updated my Galaxy note 9 to the latest software version. I always liked this version. From that day on, my iris scanner flinched a little, and I didn’t pay much attention. Everything else was good. Finally, it stopped working on the 20th. Then my phone stopped screen rotation from the 22nd, and my Samsung health app just detected 7 steps, which is impossible.

Here today I have detected that all sensors in the phone have completely stopped working. as all these functions are useful for me, I’m in great difficulty. In fact, I’m the only one who has experienced it. Others I know haven’t complained after a user interface update. I can guarantee that I have not dropped my phone or burn it or something like that. I’m confused about how did this happen. No one used my phone except me. If you could help me, that would be great.

Solution:

In this case, the best way is to follow the troubleshooting steps listed below to check whether the software fault is the cause of the problem. But before doing any trouble fixing steps on the phone, it is best to ensure that the phone is running on the latest software version. If there are updates, I suggest you download and install them first.

Setup the iris scanner

  1. Go to the Settings menu > Lock screen and security.
  2. Tap on Iris Scanner.
  3. Tap Continue to set up iris security.
  4. To use iris recognition securely, you should set a Pattern, PIN, or password. Select one of the following options to proceed.
  5. Read the disclaimer then tap on OK to proceed.
  6. Choose to register only 1 iris, or tap on Continue to register both Irises.
  7. Follow the on screen prompts to register your irises.
  8. Once the Iris registration is 100% complete, the screen will display Success. 
  9. Tap on “Done” to complete the setup.

Check if the problem still exists.

Reset Phone Settings

A soft reset is usually carried to refresh the phone software which can solve most smartphone problems. It is a measure that reverts software settings to their default. It will also re-enable default apps that might have been disabled by mistake. 

  1. Press and hold the volume down button and don’t release it.
  2. Now press and hold the Power key while holding down the volume down button.
  3. Keep both keys held down together for 10 seconds or more.

Once the phone starts, check whether the problem still exists.

Check if the issue occurs in Safe Mode

Sometimes the application you downloaded will cause problems with your phone when installed. To check if the application you have downloaded is causing a problem, better to start the phone in safe mode because only pre-installed applications are allowed to run in this mode

  1. Turn off device.
  2. Press and hold the Power key till the model name screen appearing on the screen.
  3. When SAMSUNG appears on the screen, release the Power key.
  4. Once you release the Power key, press and hold the Volume down key immediately.
  5. Continue to press and hold the Volume down key until the device restart.
  6. When Safe mode appears in the lower left corner of the screen, release the Volume down key.

If the problem does not appear in safe mode, it is most likely caused by the application you installed. Find out what application this is and uninstall it.

Wipe the cache partition of the phone

In some situations, Due to the cached data stored in the dedicated partition of the phone can become corrupted. When this happens, it usually causes some problems with the mobile phone. To eliminate the cause of the problem, you must delete the phone’s cache partition from recovery mode. To try this option, follow the steps below: Readmore: Wipe cache on Samsung Galaxy

  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 three keys.
  4. Before the Android system recovery menu option appears, an “installing system update” message will be displayed for 30 – 60 seconds.
  5. Hold and press the Volume down key several times to highlight erase cache partition.
  6. Press the Power key to select.
  7. Press and hold the Volume down key to highlight yes, then press the Power key to select.
  8. ‘Reboot system now’ is highlighted when the cache partition is completely erased.
  9. Press the Power key to restart the device.

Check if the problem still exists.

Factory Reset Your Device

This should be your last resort when trying to fix it. If the above steps cannot solve the problem in the phone, the reason might be a software failure. A factory reset will wipe your phone clean, endeavor to back up your personal files before doing it. Readmore: How to factory reset Samsung Galaxy

  1. Turn off the phone.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. Release all keys when the green Android logo displays, (‘Installing system update’ will display for about 30 – 60 seconds before appearing the Android system recovery menu options).
  4. Press the Volume down key several times to highlight ‘wipe data / factory reset’.
  5. Press Power button to select.
  6. Hold and press the Volume down key till ‘Yes — delete all user data’ is appearing highlighted.
  7. Press Power button to select and start the main reset.
  8. When the main reset is complete, ‘Reboot system now’ is appearing highlighted.
  9. Press the Power key to restart the device.

Don’t install any applications on your phone for the time being, but check if the problem still exists. If so, it is likely that the hardware component has failed. In this case, you need to take your mobile phone to the service center for inspection.

If you have a Samsung Galaxy Note 9 or any other Android device, please feel free to contact us using this form. We will be happy to help you solve any problems that may exist with your equipment. This is our free service without any conditions. However, we ask you to be as detailed as possible when you contact us in order to make an accurate assessment and give the correct solution.

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