How to Easily Master Format SAMSUNG GALAXY A42 5G with Safety Hard Reset?

Tips and tricks to fix SAMSUNG GALAXY A42 5G problems. This is mid end smartphone which use Qualcomm SM7225 Snapdragon 750 5G processor with dedicated GPU (graphic processor unit) Adreno 619 for fast graphic rendering. Android 10 is factory default operating system and ready to us with One UI 2.5 Samsung user interface.

This phone work with 5G data broadband with single or dual simcard type. The product model codes are SM-A426B and SM-A426B. The screen use Super AMOLED 6.6. inches HD 720 x 1600 pixels resolutions. There are small notch drop at top of the screen for 20 megapixel from camera. Some users get issue when use SAMSUNG GALAXY A42 5G hardware or software. Therefore we will try to give more solutions, reviews and information about how to solve SAMSUNG GALAXY A42 5G troubles at community.

What are Advantages of SAMSUNG GALAXY A42 5G Specifications and Features:

  • GSM 3G HSDPA with 4G LTE, Dual Simcard
  • LCD 6.6 inches
  • Internal memory 128 GB
  • RAM 4 GB or 6 GB or 8 GB
  • Main Camera Quad 48 MP f/1.8 + 8 MP f/2.2 + 5 MP f/2.4 + 5 MP f/2.4
  • Main Camera Features autofocus, LED flash
  • Front Camera 20 MP for video conference & selfie photography
  • Processor Octa-core 2×2.2 GHz Kryo 570 & 6×1.8 GHz Kryo 570
  • GPU Adreno 619
  • Operating system Android 10.0
  • Battery Li-Ion 5000 mAh

Simple Solutions To Fix Camera Issues On SAMSUNG GALAXY A42 5G

How to Fix or Problem Solving for Recovery SAMSUNG GALAXY A42 5G hang or not responding or malfunctions or stuck or freezing or bricked ?

This phone has big internal memory 128 GB. We still can add more storage by use MicroSD / MicroSDXC external memory. The Android operating system has been installed inside internal memory, but we still have many free storage for download more applications and games from Google Play Store.

We do not recommended to install new or not famous applications. Because sometime they may contain viruses or malware that can make troubles if installed at our SAMSUNG GALAXY A42 5G such as hang or become slowly or stuck or bricks or frozen or LCD touch screen not responding. If we must download that kind of apps, then please read many user reviews first. 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 A42 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.

Easy Way To Fix Lagging Issues On SAMSUNG GALAXY A42 Slowly

How to Force Shutdown or Force Soft Reset or Reboot or Restart SAMSUNG GALAXY A42 5G ?

RAM is important for doing multitasking applications. This phone has three options of RAM start from 4 GB or 6 GB or 8 GB. 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 A42 5G to make it work normally again. Please press and hold POWER button until SAMSUNG GALAXY A42 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 A42 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 A42 5G ?

This phone has external memory MicroSD slot. We can copy all important data from internal memory to MicroSD using Android file manager applications. Do not forget to backup photos and videos from internal memory for backup.

We can use USB data cable for connect SAMSUNG GALAXY A42 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 A42 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 On SAMSUNG GALAXY A42

#Option 1, How to Hard Reset SAMSUNG GALAXY A42 5G with software menu:

  1. Turn on this phone
  2. Make sure SAMSUNG GALAXY A42 5G battery already charge properly
  3. Go to menu:Setting >General tab> Backup & Reset > Factory data reset > Reset device
  4. ChooseErase Everything
  5. SAMSUNG GALAXY A42 5G will do the process to Master Reset to Factory Default

hard reset samsung galaxy a42 5g

#Option 2, How to Hard Reset SAMSUNG GALAXY A42 5G with Hardware key button:

  1. Make sure the battery of SAMSUNG GALAXY A42 5G charge properly or battery have more then 50% capacity
  2. Turn off SAMSUNG GALAXY A42 5G
  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 A42 5G will do the process of restoring to factory default without any password or passcode (hard reset).

How To Fix Overheat Hot Temperature Issues On SAMSUNG GALAXY A42?

How to Unlock or Fix or Bypass or Solutions for SAMSUNG GALAXY A42 5G forgot password code or security lock screen pattern or pin (lost password)?

This phone has big internal storage for install many applications. Some of apps maybe have many important data. Moreover this phone has good quality quad camera at backside body with 48 megapixel for wide + 8 megapixel for ultrawide + 5 megapixel for Macro + 5 megapixel for DoF. Some photos videos maybe private, please secure all data from unauthorized users when SAMSUNG GALAXY A42 5G away from us or lost or stolen.

We can use fingerprint which located under display. Some users get troubles with SAMSUNG GALAXY A42 5G under display fingerprint accuracy. Please do not use thick 3th party screen protection, because it will make in-display fingerprint sensor not work smooth.

After register fingerprint or face unlock recognizing, we need to choose secondary protection like screen lock pattern or password or pin. Because SAMSUNG GALAXY A42 5G fingerprint and face detection will not work after finish soft reset or reboot or restart. We need to activate using secondary protection. However, the problems will be happen when we forgot security answer or fingerprint can not work anymore, what should we do?

Do not worry because we can unlock or bypass forgotten screen lock pattern or password pin protections at SAMSUNG GALAXY A42 5G 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 A42 5G, because it can help us to bypass forgotten security protections.


When SAMSUNG GALAXY A42 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.

Solution To Fix Insufficient Storage Full On SAMSUNG GALAXY A42


This is the way to help for unlock or bypass forgotten security protection at SAMSUNG GALAXY A42 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 A42 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 A42 5G ?

We can try to use secret code for doing hard reset SAMSUNG GALAXY A42 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 A42 5G will do hard reset and remove all data also installed applications.

How to Format or Erase Phone Memory at SAMSUNG GALAXY A42 5G ?

There are two phone memory type at SAMSUNG GALAXY A42 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 A42 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 A42 5G Stronger, Life Longer and Not Fast to Drain ?

SAMSUNG GALAXY A42 5G has big battery at 5000 mAh. The battery is not removable and has fast charging 15W technology. Many users can work with this phone for two days. However, some heavy users who use for playing games or watch movie several hours will get battery drain problems. To make SAMSUNG GALAXY A42 5G battery work more longer, then please disable all not use connection like GPS or NFC or Bluetooth or Wifi. Please make LCD screen not too bright to save battery power usage.

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