Tips and tricks to fix SAMSUNG GALAXY M31S problems. This is upgrade version of M31 with several improvement. This phone still does not work with 5G. It is work with 4G LTE data broadband for faster video streaming and games. The screen size is 6.5 inches with Super AMOLED LCD type. It has Full HD+ resolutions at 1080 x 2400 pixels. We will see small punch hole at top screen for front camera.

When the fist time release on the market, Android 10.0 is factory default operating system, together with One UI 2.0 Samsung user interface. This phone powered by Exynos 9611 with dedicated GPU (graphic processor unit) Mali-G72 MP3. Some users get issue when using SAMSUNG GALAXY M31S software and hardware. We will try to give more solutions, reviews, and information about how to solve troubles of SAMSUNG GALAXY M31S at community.


What are Advantages of SAMSUNG GALAXY M31S Specifications and Features:

  • GSM 3G HSDPA with 4G LTE, Dual Simcard
  • LCD 6.5 inches HD
  • Internal memory 128 GB
  • RAM 6 GB & 8 GB
  • Main Camera Quad 64 MP + 12 MP + 5 MP + 5 MP
  • Main Camera Features autofocus, LED flash
  • Front Camera 32 MP for video conference & selfie photography
  • Processor Octa-core 4×2.3 GHz Cortex-A73 & 4×1.7 GHz Cortex-A53
  • Operating system Android 10.0
  • Battery Li-Ion 6000 mAh



Solution to Fix Camera Issues On SAMSUNG GALAXY M31S


How to Fix or Problem Solving for Recovery SAMSUNG GALAXY M31S hang or not responding or malfunctions or stuck or freezing or bricked ?

SAMSUNG GALAXY M31S has big internal storage at 128 GB. We still can add additional storage using MicroSD / MicroSDXC at dedicated external memory slot. We suggest to change main photo saving location on main camera apps to external memory to make external memory still available for install more applications from Google Play Store.

There are good and bad apps inside Google Play Store. We need to read many user review before download new or not famous apps, because some of them may contain viruses or malware that can make troubles at our SAMSUNG GALAXY M31S such as become slowly or hang or stuck or bricks or frozen or LCD touch screen not responding if installed. Usually these bad apps will not get Verified by Play Protect information.

For fix this problems, we have to try remove temporary files and caches by performing soft reset or reboot. When this phone can work again or can boot properly, then please try to download one good free Antivirus from Google Play Store like AVAST or NORTON. This antivirus will scan all installed apps and give recommendation setting for safety usage.

If the problems still happen, then please do hard reset or master format like steps above. Hard reset will remove all important files, therefore we have to backup all data before performing hard reset. All account like Samsung account and Google account will also wipe or remove from SAMSUNG GALAXY M31S after finish hard reset. Please do not install any APK files from unknown resource, because it is very easy to make our phone get some troubles.


How To Make Faster SAMSUNG GALAXY M31S?



How to Force Shutdown or Force Soft Reset or Reboot or Restart SAMSUNG GALAXY M31S ?

This phone have two version base at RAM size. There are 6 GB or 8 GB version with different price. Of course bigger RAM is better. However, some installed apps still can crash or corrupt. Then our SAMSUNG GALAXY M31S will become run not normal or LCD touch screen not responsive with finger touch or hang. We have to remove temporary files and caches inside SAMSUNG GALAXY M31S to make it work normally again. Please press and hold POWER button until SAMSUNG GALAXY M31S shutdown or turn off by itself.

You may also try press and hold POWER + VOLUME DOWN button to shut it down or restart. After it is totally off, then we can press again POWER button to turn it ON. This process will not remove any important data, therefore we can do this process anytime we want. If our SAMSUNG GALAXY M31S still can work properly, but we want to clear temporary files and caches from some applications, then please press and hold POWER button until pop-up menu appear, continue choose Shutdown / Power off / Reboot menu.


How to backup data or Contact at SAMSUNG GALAXY M31S  ?

We can use microSD external card to copy or move important files using File Manager applications. If our SAMSUNG GALAXY M31S has already signed in with Google account, by default our contact will be synchronize in the background to Google server. Please make sure we check all contact at Google contact server using Internet browse to make sure backup is done.


More Complete Procedures To Backup & Restore Data / Photos / Contact On SAMSUNG GALAXY M31S


Please note: These options bellow may not work for some devices because of firmware update version or hardware troubles or some other possibilities.

#Option 1, How to Hard Reset SAMSUNG GALAXY M31S with software menu:


  1. Turn on this phone
  2. Make sure SAMSUNG GALAXY M31S battery already charge properly
  3. Go to menu: Setting > General tab > Backup & Reset > Factory data reset > Reset device
  4. Choose Erase Everything
  5. SAMSUNG GALAXY M31S will do the process to Master Reset to Factory Default


hard reset samsung galaxy m31s

#Option 2, How to Hard Reset SAMSUNG GALAXY M31S with Hardware key button:

  1. Make sure the battery of SAMSUNG GALAXY M31S charge properly or battery have more then 50% capacity
  2. Turn off SAMSUNG GALAXY M31S
  3. Press and hold together : Power Button + Volume Up until Logo appear, then release all button
  4. Please wait until we see the menu at LCD screen, choose Wipe Data/Factory Reset with Volume Button to select and use Power Button to ok or enter.
  5. The SAMSUNG GALAXY M31S will do the process of restoring to factory default without any password or passcode (hard reset).


How To Fix Hot Temperature Issues On SAMSUNG GALAXY M31S?


How to Unlock or Fix or Bypass or Solutions for SAMSUNG GALAXY M31S forgot password code or security lock screen pattern or pin (lost password)?

With big internal storage, we will install more applications inside SAMSUNG GALAXY M31S. That apps will have some confidential data. We need to secure all data from unauthorized people when SAMSUNG GALAXY M31S away from us or lost or stolen. More over this phone have good quality four camera at back sidd of body with 64 MP as the bigger sensor size.

Fingerprint is available at SAMSUNG GALAXY M31S. It will ask to activate when the first time activate or setup from the box or after finish hard reset or master format. We can use 32 megapixel front camera as face unlock recognizing. After finish register one or all protections above, we have to choose secondary protections for backup. We can use screen lock pattern or password or pin. The problems will be happen when we forgot security answer or fingerprint can not work, what should we do?

Do not worry because we can unlock or bypass forgotten screen lock pattern or password pin protections at SAMSUNG GALAXY M31S use registered Google account. But we have to do hard reset or reformat our phone using hardware button combination key like steps above. We have to always remember our Google account username and password, because new Samsung smartphone with latest Android version already implement FRP (Factory Reset Protection).

FRP is important to secure our phone when it is stolen or lost. Android will ask for previous same Google account username and password after finish performing hard reset. Therefore we have to remember carefully our Google / Gmail username and password. We also recommended to activate or create SAMSUNG ACCOUNT at SAMSUNG GALAXY M31S, because it can help us to bypass forgotten security protections.


When SAMSUNG GALAXY M31S turn ON but the screen locked then follow this steps: 

  1. Mare sure the battery is not empty or more then 50%
  2. When Screen ON but locked, please press and hold POWER BUTTON + VOLUME DOWN button about 5 seconds until the screen off
  3. When the screen off, please directly continue press POWER BUTTON + VOLUME UP button about 4 seconds and release all button
  4. Then you will go to recovery button, choose Wipe data / Factory Reset, then all data will be wipe or the operating system will be reformat to factory default
  5. Please note, this process need us to use previous Google account for authentication after hard reset finish. For bypass FRP: Verify your account with previous Google Account.


Simple Solution To Fix Insufficient Memory Full On SAMSUNG GALAXY M31S



This is the way to help for unlock or bypass forgotten security protection at SAMSUNG GALAXY M31S. Although we are sure about our security protection, but sometime we may forget about the right answer. Please note, when we give security protection at our SAMSUNG GALAXY M31S, it also give step to put our own PIN / PASSWORD as BACKUP PASSWORD / PIN. This backup PIN use to bypass or unlock forgotten security code later. Use above steps to unlock forgot password or screen lock pattern security protection using Google account or Gmail username and password or Samsung Account.


Is That Any Secret Code for Doing Format SAMSUNG GALAXY M31S ?

We can try to use secret code for doing hard reset SAMSUNG GALAXY M31S is *2767*3855# (some Samsung hardware or firmware update will not work with this code). But please remember to always be careful typing that code, because the SAMSUNG GALAXY M31S will do hard reset and remove all data also installed applications.


How to Format or Erase Phone Memory at SAMSUNG GALAXY M31S ?

There are two phone memory type at SAMSUNG GALAXY M31S, one is internal memory and the other one is external memory. If we want to format internal memory phone then we have to do hard reset or reformat the operating system of SAMSUNG GALAXY M31S as well. Please use menu setting to do hard reset or reformat using #option 1 above, but make sure to give checkbox mark at Erase Internal SD card / Internal storage. Then it will reformat the factory default operating system and remove or erase any data inside internal memory.

To reformat or wipe or erase all data at external memory, we can use menu Setting > Storage > Erase Internal Storage / SD Card. Please always make sure all data has already backup before reformat or wipe everything, because it is hard to recover formatted / wiped data at internal or external storage.


How to Make Battery of SAMSUNG GALAXY M31S Stronger, Life Longer and Not Fast to Drain ?

SAMSUNG GALAXY M31S has big batter capacity with 6000 mAh. It is not removable battery type. But the most interesting features at this version is having fast charging 25W for more quick charging time. We can use this phone more then one day for doing activity. However, some heavy users which use for watch movie or playing games several hours continuously still get battery drain troubles. Please do some adjustment to make battery work more longer. Disable all not use connections are recommended such as NFC or Bluetooth or GPS or Wifi. We need to set the brightness as low as possible.