Tips and tricks to fix OPPO A57S problems. We can not use 5G connection for Internet access, but 4G LTE is working good for support all activity. This phone is powered by MediaTek MT6765G Helio G35 processor with PowerVR GE8320 GPU (graphic processor unit). The first operating system installed with Android 12 and ColorOS 12.1 Oppo user interface.

The screen size is 6.56 inches with HD resolutions. It is protected by Panda Glass. This phone has dual main camera at back side body with 50 megapixel for wide and 2 megapixel for depth of field or bokeh blur effect. We will give more solutions and information about how to solve troubles of OPPO A57S at community.


What are Advantages of OPPO A57S Specifications and Features?

  • Network GSM 3G HSDPA or 4G LTE with Dual simcard slot
  • LLCD 6.56 inches 20:9 aspect ratio
  • Processor Octa-core 4×2.3 GHz Cortex-A53 & 4×1.8 GHz Cortex-A53
  • GPU PowerVR GE8320
  • Bluetooth / GPS / Wifi / NFC
  • Memory Internal 64 GB or 128 GB
  • RAM 4 GB
  • Main Camera Dual 50 MP f/1.8 + 2 MP f/2.4
  • Main Camera Features autofocus, LED flash
  • Front Camera 8 MP for video conference and selfie photography
  • Operating System Android 12
  • Battery Li-Po 5000 mAh



Solutions To Fix Camera Issues on OPPO A57S

Some users can use their front selfie camera or rear camera. Follow this page to solve OPPO A57S camera problems.


How to Fix or Problem Solving for Recovery OPPO A57S hang or not responding or malfunctions or stuck or freezing or bricked ?

OPPO A57S has two internal storage with 64 GB or 128 GB. We can use MicroSD for extend the storage. There are many apps that ready to download inside Google Play Store, but some new or not famous app may contain viruses or malware. Therefore we have to  read many user reviews before install that apps.

If we install that kind of apps, then our OPPO A57S will get some troubles like become hang or freezing or slowly or stuck or broken or LCD touch screen not responsive. These kind of apps will not get Verified by Play Protect information / icon.

What do we have to do? Please try to remove temporary files and caches from internal memory by performing soft reset or reboot. We might get some help from antivirus applications like AVAST or NORTON to find suspected application and fix some bad setting options.

We also can clean temporary files and caches anytime by performing reboot or restart. This procedure will not remove any installed applications and important data, therefore we can do this process anytime we want. Please do not install APK from unknown resource for safety reasons.



How to Force Shutdown or Force Soft Reset or Reboot or Restart OPPO A57S ?

OPPO A57S (CPH2385) RAM capacity is 4 GB. Some installed applications also can get hang or make LCD touch screen not responding. We have to force reboot or soft reset or restart by press and hold POWER button until OPPO A57S turning off or shutdown.

Performing reboot or restart is recommended anytime we want, because it can help to make our OPPO A57S become faster. It will remove any temporary files and caches. All applications and data will not removed or wipe because of soft reset or reboot or restart.


How To Make Faster OPPO A57S. Boost Perfomance?

Follow this page to fix slowly problems of OPPO A57S when doing some activity or playing games.

How to backup data or Contact at OPPO A57S ?

This phone has external memory slot for MicroSDXC memory card. We can copy and paste all important files, photos, videos from internal memory using Android file manager.

We can use USB data cable to connect with computer. After our phone recognize by computer, then choose important files using computer file manager and copy to safety location at our computer. We also can connect OPPO A57S with flash drive at USB OTG port.

If our OPPO A57S 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 OPPO A57S

We need to backup all photos, videos and important data to safe location. Follow this page to do manual or auto backup OPPO A57S data at safe location.


Please note: These options below may not work for some devices because of firmware update version or hardware troubles or some other possibilities.

#Option 1, Hard Reset OPPO A57S with software menu

  1. Turn on the OPPO A57S
  2. Make sure the battery is not empty
  3. Backup important data at OPPO A57S because all data and applications will be erase or delete
  4. Go to Menu :  Setting 
  5. Choose Tab : General
  6. Press Backup & Reset > Restore factory setting
  7. Better you not check anything at the option if you do not want to erase data at data partition at internal memory
  8. Choose Reset phone 
  9. The OPPO A57S will do the master reset process.


hard reset oppo a57s

#Option 2, Hard Reset OPPO A57S Factory Default using Hardware Secret Button Key

If we can not go to menu, or OPPO A57S can not turn on or hang or stuck or frozen so we can not access the menu setting or nothing happen while touch the screen, then try to factory reset with secret button and hardware key

  1. Turn off the OPPO A57S
  2. Make sure the battery OPPO A57S already full or more than 50%
  3. Press together and hold the Power Button + Volume Down Button
  4. If the Logo appear, then release the button, after that we will enter some menu
  5. Choose wipe data / factory reset using Volume Button, and press Power Button to Enter or OK
  6. The OPPO A57S will continue master reset, wait for several minutes until OPPO A57S start like new again.


How to Unlock or Fix or Bypass or Solutions for OPPO A57S forgot password code or security lock screen pattern or pin (lost password)?

It is important to protect all data, installed applications and photos videos from unauthorized people when OPPO A57S away from us or lost or stolen. We can use fingerprint or facial recognizing that work with 8 megapixel front selfie camera.

We have to know after OPPO A57S reboot or restart, the fingerprint or face detection will not work. It will ask to unlock using secondary protection like pin or password or screen lock pattern. However, the problems will start happen when we can not unlock this phone or fingerprint can not work. What should we do?

If we forgot or can not unlock OPPO A57S security protection, then nothing we can do unless doing hard reset or master format using hardware button combination key like steps at #option 2 above. For more security protection, latest Android version has FRP (factory reset protection), therefore it will ask for previous Google account username and password to bypass FRP question.


If we can not turn off our OPPO smartphone, then please force soft reset or reboot by press POWER BUTTON + VOLUME UP BUTTON for several seconds (usually less then 10 seconds) until this phone reboot by itself.


Is That Any Secret Code for Doing Format OPPO A57S ?

There is no secret hidden code for OPPO A57S to make it back to factory default. We need to choose one following options above to hard reset.


How to Format or Erase Phone Memory at OPPO A57S ?

When we need to remove or wipe any data and applications from OPPO A57S, then please performing hard reset or reformat. Please choose Erase all data / Internal storage when our phone has that menu. Performing hard reset or reformat will remove any registered Google account from OPPO A57S.


How to Make Battery of OPPO A57S Stronger, Life Longer and Not Fast to Drain ?

OPPO A57S (CPH2385) use 5000 mAh battery capacity. It has fast charging 33W technology. Please do some adjustment to make the battery work more longer like make LCD screen brightness as low as possible and turn off all not use connections like GPS or NFC or WiFi or Bluetooth.