How to Easily Master Format SAMSUNG GALAXY A03 CORE with Safety Hard Reset?

Tips and tricks to fix SAMSUNG GALAXY A03 CORE problems. This is cheap entry level smartphone that powered by Unisoc SC9863A Octac Core processor. It does not have 5G connections, but we can use 4G LTE or 3G or 2G depend on our locations. The screen size is 6.5 inches. Some users get issues when using SAMSUNG GALAXY A03 CORE software or hardware, therefore we will give more solutions and information to solve the troubles at community.

What are Advantages of SAMSUNG GALAXY A03 CORE Specifications and Features:

  • GSM 3G HSDPA with 4G LTE, Dual Simcard
  • LCD 6.5 inches
  • Internal memory 32 GB with 2 GB RAM
  • Main Camera 8 MP f/2.0
  • Main Camera Features autofocus, LED flash
  • Front Camera 5 MP for video conference & selfie photography
  • Processor Octa-core 4×1.6 GHz Cortex-A55 & 4×1.2 GHz Cortex-A55
  • GPU IMG8322
  • Operating system Android 11
  • Battery Li-Ion 5000 mAh

Solutions To Fix Camera Issues on SAMSUNG GALAXY A03 CORE

How to Fix or Problem Solving for Recovery SAMSUNG GALAXY A03 CORE hang or not responding or malfunctions or stuck or freezing or bricked ?

This phone work with low specifications including 32 GB internal storage with 2 GB RAM. We only can install selected applications. Please do not install new or not famous applications because it may contain viruses or malware. And also, more applications also will make this phone get troubles such as become slowly or stuck or bricks or hang or LCD touch screen not responding or frozen. Google will not give Verified by Play Protect information when the applications are not safe.

When we get this problems, we need to remove any temporary files and caches from SAMSUNG GALAXY A03 CORE by performing reboot or restart. We need to install good antivirus like NORTON or AVAST to scan all applications and bad settings inside this phone.

If the problems still happen, then we have to force hard reset or master format to factory default reset with one of the options above. Please note, doing hard reset will remove all important data and installed applications. We need to backup all important data before performing hard reset. For safety reasons, we suggest to stay away from unknown APK, because some of them are not dangerous.

How To make Faster SAMSUNG GALAXY A03 CORE – Improve Performance?

How to Force Shutdown or Force Soft Reset or Reboot or Restart SAMSUNG GALAXY A03 CORE ?

The RAM resources is very limited with 2 GB. Some apps may crash or corrupt that can make SAMSUNG GALAXY A03 CORE frozen or hang or LCD touch screen not responsive. We have to force soft reset or reboot or restart to clean temporary files.

Please press and hold POWER BUTTON + VOLUME DOWN BUTTON to shutdown or restart. We can turn it on again by pressing POWER BUTTON. Do not worry with our data and applications, because soft reset process will not remove any important files. We can do this process anytime we want, especially when some strange situations happen on SAMSUNG GALAXY A03 CORE.

We also can do soft reset procedure when our phone still at ON positions, by press and hold POWER BUTTON for several seconds, then the pop-up menu will appear for Shutdown / Reboot / Power off.

Solutions and Tricks For Reset Forgot Samsung Account

How to backup data or Contact at SAMSUNG GALAXY A03 CORE ?

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 A03 CORE 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 A03 CORE 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 A03 CORE

#Option 1, How to Hard Reset SAMSUNG GALAXY A03 CORE with software menu:

  1. Turn on this phone
  2. Make sure SAMSUNG GALAXY A03 CORE battery already charge properly
  3. Go to menu:Setting >General tab> Backup & Reset > Factory data reset > Reset device
  4. ChooseErase Everything
  5. SAMSUNG GALAXY A03 CORE will do the process to Master Reset to Factory Default

hard reset samsung galaxy a03 core

#Option 2, How to Hard Reset SAMSUNG GALAXY A03 CORE with Hardware key button:

  1. Make sure the battery of SAMSUNG GALAXY A03 CORE charge properly or battery have more then 50% capacity
  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 A03 CORE will do the process of restoring to factory default without any password or passcode (hard reset).

Solutions To Fix Hot Temperature Issues On SAMSUNG GALAXY A03 CORE

How to Unlock or Fix or Bypass or Solutions for SAMSUNG GALAXY A03 CORE forgot password code or security lock screen pattern or pin (lost password)?

Please always secure our phone with screen protection or pin or password when it is stolen or lost or away from us. Because this phone will have many important data and private photos videos. We can not use fingerprint because it does not available on SAMSUNG GALAXY A03 CORE. The problems will be happen when we forgot all security protection answer, what should we do?

If we forgot the security protection, then we have to force hard reset or reformat to factory default by using hardware button combination key like steps at #option 2 above. This phone has FRP (factory reset protection) for secure our phone when stolen or lost. After reformat procedure finish, then we have to bypass the FRP by verified using previous Google account / Gmail account username and password.

We also recommended to activate or create SAMSUNG ACCOUNT at SAMSUNG GALAXY A03 CORE, because it can help us to bypass forgotten security protections.


When SAMSUNG GALAXY A03 CORE 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 Not Enough Storage / Memory Full on SAMSUNG GALAXY A03 CORE


This is the way to help for unlock or bypass forgotten security protection at SAMSUNG GALAXY A03 CORE. 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 A03 CORE, 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 A03 CORE ?

We can try to use secret code for doing hard reset SAMSUNG GALAXY A03 CORE 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 A03 CORE will do hard reset and remove all data also installed applications.

How to Format or Erase Phone Memory at SAMSUNG GALAXY A03 CORE ?

If we want to erase all data, files and installed applications from SAMSUNG GALAXY A03 CORE, we have to do hard reset or reformat using menu like #option 1 above. We need to choose the checkbox mark for erase or remove data at internal / external memory. All data will be clean up from our SAMSUNG GALAXY A03 CORE including Google account and Samsung account.

How to Make Battery of SAMSUNG GALAXY A03 CORE Stronger, Life Longer and Not Fast to Drain ?

SAMSUNG GALAXY A03 CORE battery is 5000 mAh. We can use this phone full one day or more. We suggest to do some adjustment to make the battery work more longer. We have to make LCD screen not too bright and disable all not use connections like GPS or Bluetooth or Wifi. NFC is not available on SAMSUNG GALAXY A03 CORE.

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