How to Easily Master format SAMSUNG GALAXY A51 with Safety Hard Reset?

Tips and tricks to fix SAMSUNG GALAXY A51 problems. This is Android 10 (Ten) operating system smartphone which comes together with ONE UI 2. The screen size is 6.5 inches Full HD+ at 1080 x 2400 pixels resolutions. SAMSUNG GALAXY A51 use Super AMOLED screen type to make color view more vivid and beautiful. We can choose single or dual simcard network provider, both version still can add with additional storage MicroSD maximum 1000 TB.

SAMSUNG GALAXY A51 have several type of model SM-A515F / SM-A515FN / SM-A515GN / SM-A515FM / SM-A515YN / SM-A515W, they are depend on country release. At the front body, we will see full screen display without notch but replace with small hole for front camera. Find more review and information about how to solve troubles of SAMSUNG GALAXY A51 at community.

What are Advantages of SAMSUNG GALAXY A51 Specifications:

GSM 3G HSDPA with 4G LTE, Dual Simcard
LCD 6.5 inches
Internal memory 128 GB
Main Camera Quad 48 MP f/2.0 + 12 MP f/2.2 + 5 MP f/2.4 + 5 MP f/2.2
Main Camera Features autofocus, LED flash
Front Camera 32 MP for video conference & selfie photography
Processor Octa-core 4 x 2.3 GHz Cortex-A73 & 4 x 1.7 GHz Cortex-A53
GPU Mali-G72 MP3
Operating system Android 10
Battery Li-Ion 4000 mAh

Easy Solutions To Fix Camera Issues On SAMSUNG GALAXY A51

How to Fix or Problem Solving for Recovery SAMSUNG GALAXY A51 hang or not responding or malfunctions or stuck or freezing or bricked ?

SAMSUNG GALAXY A51 is mid-end smartphone which release with Android 10 as factory default operating system. It is use Samsung own manufacture processor known as Exynos 9611 with dedicated GPU Mali-G72 MP3 for support playing same games without troubles. The internal memory already big enough at 128 GB with 6 GB RAM for multitasking. Good think of SAMSUNG GALAXY A51 become more complete because it have dedicated MicroSD external memory if we need to extend the storage.

We can install many applications from Google Play Store like Instagram, Kakaotalk, Telegram, Facebook, WeChat, Whatsapps, Viber and some other more at 128 GB internal memory, but we have to read as many user review as possible when we want to download new or not famous applications, because some of them may contain viruses or malware that can make troubles at our SAMSUNG GALAXY A51 like hang or stuck or bricks or frozen or LCD touch screen not responding. Usually that bad apps will not get Verified by Play Protect information.

We have to try remove temporary files and caches by doing 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 A51 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.

Solutions To Fix Lagging Issues On SAMSUNG GALAXY A51

How to Force Shutdown or Force Soft Reset or Reboot or Restart SAMSUNG GALAXY A51 ?

With good processor and enough RAM, most apps can work without troubles at SAMSUNG GALAXY A51. But we can not sure about applications crash or corrupt that can make SAMSUNG GALAXY A51 work not normal like LCD touch screen not responsive with finger touch or hang. We have to remove temporary files and caches inside SAMSUNG GALAXY A51 to make it work normally again. Please press and hold POWER button until SAMSUNG GALAXY A51 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 A51 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 A51 ?

We can use microSD external card to copy or move important files using File Manager applications. If our SAMSUNG GALAXY A51 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.

Complete Solutions To Backup & Restore Data / Photos / Videos / Contact On SAMSUNG GALAXY A51

#Option 1, How to Hard Reset SAMSUNG GALAXY A51 with software menu:

  1. Turn on this phone
  2. Make sure SAMSUNG GALAXY A51 battery already charge properly
  3. Go to menu:Setting >General tab> Backup & Reset > Factory data reset > Reset device
  4. ChooseErase Everything
  5. SAMSUNG GALAXY A51 will do the process to Master Reset to Factory Default

hard reset samsung galaxy a51

#Option 2, How to Hard Reset SAMSUNG GALAXY A51 with Hardware key button:

  1. Make sure the battery of SAMSUNG GALAXY A51 charge properly or battery have more then 50% capacity
  2. Turn off SAMSUNG GALAXY A51
  3. Press and hold together :Power Button + Volume Upuntil Logo appear, then release all button
  4. Please wait until we see the menu at LCD screen, chooseWipe Data/Factory ResetwithVolume Buttonto select and usePower Buttonto ok or enter.
  5. The SAMSUNG GALAXY A51 will do the process of restoring to factory default without any password or passcode (hard reset).

Solutions to Fix Overheat / Hot Temperature Issues On SAMSUNG GALAXY A51

How to Unlock or Fix or Bypass or Solutions for SAMSUNG GALAXY A51 forgot password code or security lock screen pattern or pin (lost password)?

SAMSUNG GALAXY A51 have four camera at back side of body. The biggest camera resolutions is 48 megapixel for standard wide, then others lens are 12 megapixel for ultrawide + 5 megapixel for macro + 5 megapixel for DOF or Bokeh effect. With big internal memory we will have many private photos or videos inside our phone. We have to secure all important data from unauthorized people when SAMSUNG GALAXY A51 away from us or lost or stolen. Like other Galaxy 50 family, SAMSUNG GALAXY A51 have Fingerprint under the display. We have to register our finger several time to make it recognize for unlock. The front camera can be work as face unlock recognizing. We can choose either fingerprint or face unlock. Secondary protections need to choose for backup, please use screen lock pattern or password pin protections. 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 A51 use registered Google account. But please note, we have to 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 A51, because it can help us to bypass forgotten security protections.


When SAMSUNG GALAXY A51 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


This is the way to help for unlock or bypass forgotten security protection at SAMSUNG GALAXY A51. 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 A51, 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.

Solutions For Fix Fingerprint Accuracy Issues On SAMSUNG GALAXY A51

Is That Any Secret Code for Doing Format SAMSUNG GALAXY A51 ?

We can try to use secret code for doing hard reset SAMSUNG GALAXY A51 is *2767*3855#. But please remember to always be careful typing that code, because the SAMSUNG GALAXY A51 will do hard reset and remove all data also installed applications.

How to Format or Erase Phone Memory at SAMSUNG GALAXY A51 ?

There are two phone memory type at SAMSUNG GALAXY A51, 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 A51 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.

Solutions To Fix Low Free Storage On SAMSUNG GALAXY A51 Memory Full

How to Make Battery of SAMSUNG GALAXY A51 Stronger, Life Longer and Not Fast to Drain ?

SAMSUNG GALAXY A51 use 4000 mAh battery capacity. The battery is not removable, therefore when some troubles happen or battery life cycle already full, then we have to replace with original battery at Samsung authorized service center. Some heavy users who playing games or watch movie several hours continuously will have to do some adjustment to make SAMSUNG GALAXY A51 work more longer. Please make LCD screen brightness as low as possible and disable all not use connections like GPS or NFC or Bluetooth or Wifi.

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