Tips and tricks to fix SAMSUNG GALAXY S21 5G problems. Flagship smartphone with new Android 11 as factory default operating system with One UI 3.1. It is powered by 5 nm FitFET processor. For USA & China it use Qualcomm SM8350 Snapdragon 888 and for International version use Exynos 2100. For support playing fast graphic rendering gaming applications, the GPU (graphic processor unit) use Adreno 660 or Mali-G78 MP14.

There are several product model code depend on country release with SM-G991B, SM-G991B/DS, SM-G991U, SM-G991U1, SM-G991W, SM-G991N, SM-G9910. The screen use vivid Dynamic AMOLED 2X with 120Hz at 6.2 inches LCD size Full HD+ 1080 x 2400 pixels. If we get some issues with SAMSUNG GALAXY S21 5G software or hardware, we will give more solutions, reviews and information about how to solve troubles on SAMSUNG GALAXY S21 5G at www.hard-reset.org community.

 

What are Advantages of SAMSUNG GALAXY S21 5G Specifications and Features:

  • GSM 3G HSDPA with 4G LTE + 5G, Dual Simcard
  • LCD 6.2 inches
  • Internal memory 128 GB or 256 GB
  • RAM 8 GB
  • Main Camera Triple 12 MP f/1.8 + 64 MP f/2.0 + 12 MP f/2.2
  • Main Camera Features autofocus, LED flash
  • Front Camera 10 MP for video conference & selfie photography
  • Processor Octa-core 1×2.9 GHz Cortex-X1 & 3×2.80 GHz Cortex-A78 & 4×2.2 GHz Cortex-A55 (International version)
  • Processor Octa-core 1×2.84 GHz Kryo 680 & 3×2.42 GHz Kryo 680 & 4×1.80 GHz Kryo 680 (USA/China version)
  • GPU Mali-G78 MP14 or Adreno 660
  • Operating system Android 11
  • Battery Li-Ion 4000 mAh

 

 

Solution To Fix Camera Issues On SAMSUNG GALAXY S21

 

How to Fix or Problem Solving for Recovery SAMSUNG GALAXY S21 5G hang or not responding or malfunctions or stuck or freezing or bricked ?

This is high end smartphone without external memory MicroSD slot, but we can choose to buy 128 GB or 256 GB internal storage version. All data and installed games and applications from Google Play Store will be store on this internal memory.

Please do not install new or not famous applications before read many user reviews, because some of them may contain viruses or malware that can make troubles if installed on SAMSUNG GALAXY S21 5G such as hang or become slowly or stuck or bricks or frozen or LCD touch screen not responding. 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 S21 5G 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 Force Shutdown or Force Soft Reset or Reboot or Restart SAMSUNG GALAXY S21 5G ?

 

SAMSUNG GALAXY S21 5G has 8 GB RAM capacity. Some installed applications might crash or corrupt, it makes some not normal performance or LCD touch screen not responsive with finger touch or hang. We have to remove temporary files and caches inside SAMSUNG GALAXY S21 5G to make it work normally again. Please press and hold POWER button until SAMSUNG GALAXY S21 5G 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 S21 5G 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.

 

Solutions and Tricks For Reset Forgot Samsung Account

 

How to backup data or Contact at SAMSUNG GALAXY S21 5G  ?

We can not backup any files to external memory MicroSDXC because it does not have external memory slots. However, therefore some other solutions to backup important files.

We can use USB data cable for connect SAMSUNG GALAXY S21 5G with computer PC. After our computer can recognize our phone, then use computer File Manager for browse important files inside internal memory and copy to our computer.

If our SAMSUNG GALAXY S21 5G 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 Solutions To Backup & Restore Data / Contact / Photos on SAMSUNG GALAXY S21

 

 

#Option 1, How to Hard Reset SAMSUNG GALAXY S21 5G with software menu:

  1. Turn on this phone
  2. Make sure SAMSUNG GALAXY S21 5G 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 S21 5G will do the process to Master Reset to Factory Default

 

hard reset samsung galaxy s21 5g

#Option 2, How to Hard Reset SAMSUNG GALAXY S21 5G with Hardware key button:

  1. Make sure the battery of SAMSUNG GALAXY S21 5G charge properly or battery have more then 50% capacity
  2. Turn off SAMSUNG GALAXY S21 5G
  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 S21 5G will do the process of restoring to factory default without any password or passcode (hard reset).

 

Solution To Fix Overheat Hot Temperature Issues On SAMSUNG GALAXY S21

 

How to Unlock or Fix or Bypass or Solutions for SAMSUNG GALAXY S21 5G forgot password code or security lock screen pattern or pin (lost password)?

This phone has interesting triple rear camera with 12 megapixel for wide + 64 megapixel telephotos with 3x hybrid zoom + 12 megapixel for 120 degree ultrawide. All back side camera has images stabilizer for reduce handshake. Of course we will have many private photos videos and important applications data inside this phone. We have to secure all confidential data from unauthorized people when SAMSUNG GALAXY S21 5G away from us or stolen or lost.

SAMSUNG GALAXY S21 5G use ultrasonic Qualcomm fingerprint scanner which is known with better accuracy for in-display fingerprint. We can use front camera for face unlock recognizing. Please choose secondary protections for backup like password or pin or screen lock pattern.

Please remember, SAMSUNG GALAXY S21 5G fingerprint and face detection will not work when this phone finish reboot or restart or soft reset. We have to activate using secondary protections that we have choose before.  However, the problems will be happen when we forgot all security protection answer, including fingerprint or face detection, what should we do?

Samsung Android smartphone has strong protections for secure our data. If we forgot our security protections, then we need to do hard reset or reformat using hardware button combination key like steps at #option 2 above for bypass forgotten security protections like screen lock pattern or password or pin on SAMSUNG GALAXY S21 5G. Because Samsung use latest Android version with FRP / Factory Reset Protection, then we need to use our previous Gmail / Google account username and password for bypass FRP.

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 S21 5G, because it can help us to bypass forgotten security protections.

HARD RESET SAMSUNG GALAXY S21 5G WHEN FORGOT PASSWORD / PATTERN (SCREEN LOCKED):

When SAMSUNG GALAXY S21 5G 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.

 

What is BACKUP PASSWORD / BACKUP PIN at SAMSUNG GALAXY S21 5G  ?

This is the way to help for unlock or bypass forgotten security protection at SAMSUNG GALAXY S21 5G. 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 S21 5G, 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 S21 5G ?

We can try to use secret code for doing hard reset SAMSUNG GALAXY S21 5G 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 S21 5G will do hard reset and remove all data also installed applications.

 

How to Format or Erase Phone Memory at SAMSUNG GALAXY S21 5G ?

There are two phone memory type at SAMSUNG GALAXY S21 5G, 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 S21 5G 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 S21 5G Stronger, Life Longer and Not Fast to Drain ?

This phone has 4000 mAh battery. With 5 nm processor technology on Qualcomm SM8350 Snapdragon 888 or Exynos 2100, then SAMSUNG GALAXY S21 5G should have better battery management to make it work full one day without recharge.

This phone has fast charging 25W and also has fast Qi/PMA wireless charging 15W technology. We should not have any troubles if we want to do quick recharge. If we want to make the battery more longer for watch movie or play games, then please do some adjustment like make LCD screen brightness as low as possible and disable all not use connections like NFC or GPS or Bluetooth or Wifi.

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