How to Easily Master Format OPPO A77S with Safety Hard Reset?

Tips and tricks to fix OPPO A77S problems. This phone does not have 5G connection, but we can use 4G LTE for broadband Internet access. The first operating system has been installed with Android 12 and ColorOS 12.1. It has mid-end processor Qualcomm SM6225 Snapdragon 680 4G with dedicated GPU (graphic processor unit) Adreno 610.

The screen size use 6.56 inches size with 90Hz refresh rate using HD resolutions at 720 x 1612 pixels. This phone has big internal memory with 128 GB and 8 GB RAM for multitasking. We can use MicroSDXC because it has external memory slot. Follow some solutions and information below about how to solve OPPO A77S troubles at community.

What are Advantages of OPPO A77S 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 4×2.4 GHz Kryo 265 Gold & 4×1.9 GHz Kryo 265 Silver
  • GPU Adreno 610
  • Bluetooth / GPS / Wifi / NFC
  • Memory Internal 128 GB
  • RAM 8 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 A77S

Some users can not use thier OPPO A77S front camera or main camera for taking photos or record movie. Follow this page to solve OPPO A77S problems.

How to Fix or Problem Solving for Recovery OPPO A77S hang or not responding or malfunctions or stuck or freezing or bricked ?

The internal memory 128 GB by default will be use for save all installed apps. The storage can be extend using MicroSD card, mostly use for keep our photos and videos from main camera applications. Please be careful before download new or not famous applications. Because some of them are fake and may contain viruses or threat or malware.

They can stolen our data. OPPO A77S also might get some troubles like hang or freezing or become slowly or stuck or broken or LCD touch screen not responsive. These kind of apps will not get Verified by Play Protect information / icon. We suggest to read many user reviews before install that kind of apps.

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 A77S ?

OPPO A77S has 8 GB RAM that is enough for multitasking performance. Some other installed applications also might get hang that make LCD touch screen not responding. We have to force reboot or soft reset or restart by press and hold POWER button until OPPO A77S turning off or shutdown.

Performing reboot or restart is recommended anytime we want, because it can help to make our OPPO A77S 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 A77S. Improve Speed Performance?

Some users get slowly issues when playing games using OPPO A77S. Follow this page to fix lagging problems at OPPO A77S.

How to backup data or Contact at OPPO A77S ?

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 A77S with flash drive at USB OTG port.

If our OPPO A77S 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 OPPO A77S

There are some easy steps to process backup data. We also give simple solutions to restore data after we loose our data on OPPO A77S.

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 A77S with software menu

  1. Turn on the OPPO A77S
  2. Make sure the battery is not empty
  3. Backup important data at OPPO A77S because all data and applications will be erase or delete
  4. Go to Menu : Setting
  5. Choose Tab :General
  6. PressBackup & 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. ChooseReset phone
  9. The OPPO A77S will do the master reset process.

hard reset oppo a77s

#Option 2, Hard Reset OPPO A77S Factory Default using Hardware Secret Button Key

If we can not go to menu, or OPPO A77S 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 A77S
  2. Make sure the battery OPPO A77S already full or more than 50%
  3. Press together and hold thePower Button + Volume Down Button
  4. If the Logo appear, then release the button, after that we will enter some menu
  5. Choosewipe data / factory resetusingVolume Button, and pressPower Buttonto Enter or OK
  6. The OPPO A77S will continue master reset, wait for several minutes until OPPO A77S start like new again.

How to Unlock or Fix or Bypass or Solutions for OPPO A77S forgot password code or security lock screen pattern or pin (lost password)?

It is very important to activate security protection for secure our important data from unauthorized people, especially when OPPO A77S away from us or lost or stolen. The security protection also keep secure our private photos and videos that shoot with dual camera 50 megapixel for wide + 2 megapixel for depth of field. We can choose to use fingerprint or face detection.

After OPPO A77S (CPH2473) reboot or restart, the fingerprint or facial recognizing will not work. We have to unlock using secondary protections 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 A77S 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 A77S ?

There is no secret hidden code for OPPO A77S 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 A77S ?

When we need to remove or wipe any data and applications from OPPO A77S, 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 A77S.

How to Make Battery of OPPO A77S Stronger, Life Longer and Not Fast to Drain ?

This phone can work full one day or more without need to recharge, because OPPO A77S (CPH2473) has big battery 5000 mAh capacity. It has fast charging 33W technology. If we want to make OPPO A77S battery work more longer, then we have to do some adjustment like make disable all not use connections like NFC or GPS or Bluetooth or WiFi. We also have to make LCD screen brightness as low as possible.

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