Tips and tricks to fix SAMSUNG GALAXY S21 ULTRA 5G problems. This phone the biggest screen of Galaxy S21 which use Dynamic AMOLED 2x at 6.8 inches LCD screen at 1440 x 3200 pixels resolutions. The screen has protected with Corning Gorilla Glass Victus scratch resistance. This phone also has IP68 water resistance features to make it easy for wash after bring outside home for clean up viruses like Covid-19 or some others more.

Of course we can use 5G broadband on single or dual simcard slot. This phone already included with active stylus S-Pen technology. The first operating system use Android 11 with One UI 3.1 Samsung user interface. Some users get issues with software or hardware on SAMSUNG GALAXY S21 ULTRA 5G. Therefore we will try to give more solutions, reviews and information about how to solve SAMSUNG GALAXY S21 ULTRA 5G troubles at community.


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

  • GSM 3G HSDPA with 4G LTE + 5G, Dual Simcard
  • LCD 6.8 inches
  • Internal memory 128 GB or 256 GB with 12 GB RAM
  • Internal memory 512 GB with 16 GB RAM
  • Main Camera Quad 108 MP f/1.8 + 10 MP f/4.9 + 10 MP f/2.4 + 12 MP f/2.2
  • Main Camera Features autofocus, LED flash
  • Front Camera 40 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 5000 mAh



Solutions To Fix Camera Issues On SAMSUNG GALAXY S21 ULTRA


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

We can choose to buy 128 GB or 256 GB or 512 GB internal memory version of SAMSUNG GALAXY S21 ULTRA 5G. Of course more bigger storage will have more expensive price. But it is worth to buy because this phone does not have external memory slot for MicroSD card. We can download many games and applications from Google Play Store.

We must read many users reviews before download or install any applications and games, because some new or not famous apps may contain viruses or malware that can make troubles if installed on our SAMSUNG GALAXY S21 ULTRA 5G like 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 ULTRA 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 ULTRA 5G ?


There are two available RAM on SAMSUNG GALAXY S21 ULTRA 5G with 12 GB or 16 GB RAM capacity. However, 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 ULTRA 5G to make it work normally again. Please press and hold POWER button until SAMSUNG GALAXY S21 ULTRA 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 ULTRA 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 ULTRA 5G  ?

We can use USB data cable for connect SAMSUNG GALAXY S21 ULTRA 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 ULTRA 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 / Photos / Contact on SAMSUNG GALAXY S21 ULTRA


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


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


hard reset samsung galaxy s21 ultra 5g

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

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


Solution To Fix Overheat Issues On SAMSUNG GALAXY S21 ULTRA


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

After use this phone for several period, we will have many installed apps that have its own data like chatting history or photos videos which taken from four rear camera with 108 megapixel wide + 10 megapixel telephoto 10x optical zoom + 10 megapixel 3x optical zoom + 12 megapixel ultrawide. We must secure all data from unauthorized people when SAMSUNG GALAXY S21 ULTRA 5G away from us or lost or stolen.

Ultrasonic fingerprint sensor is ready to use on SAMSUNG GALAXY S21 ULTRA 5G. It is fast and accurate for unlock our phone. We can use 40 megapixel front camera for face unlock recognizing with AI technology. Secondary protections must be chosen for backup like pin or password or screen lock pattern.

Please note, the fingerprint or face detection will not work after SAMSUNG GALAXY S21 ULTRA 5G finish reboot or restart. We have to activate one time using secondary protection. 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 ULTRA 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 ULTRA 5G, because it can help us to bypass forgotten security protections.


When SAMSUNG GALAXY S21 ULTRA 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.


Solutions To Fix Internal Memory Full Issues On SAMSUNG GALAXY S21 ULTRA 



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

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


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

If we want to format internal memory phone then we have to do hard reset or reformat the operating system of SAMSUNG GALAXY S21 ULTRA 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 ULTRA 5G Stronger, Life Longer and Not Fast to Drain ?

Big battery is always important. This phone has 5000 mAh for 6.8 inches screen. We can use this phone more longer because it use 5nm FinFET technology processor. However, the battery will not enough if we use this phone too much for watching movies or playing games several hours continuously.

We have to do some adjustment to make SAMSUNG GALAXY S21 ULTRA 5G battery work more longer like make LCD screen brightness not too bright for save battery usages. We also need to disable all not use connections for battery saving like GPS or NFC or Bluetooth or Wifi.


SAMSUNG GALAXY S21 ULTRA 5G has several product mode code SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980. The process to hard reset is not different for all type.