How to Easily Master Format OPPO A77 4G with Safety Hard Reset?

Tips and tricks to fix OPPO A77 4G problems. This is other alternative for cheaper Oppo A77 family that does not have 5G connections. We can use 4G LTE for broadband Internet access because it is powered by MediaTek MT6765G Helio G35 processor. For support playing some games, this phone has dedicated GPU (graphic processor unit) PowerVR GE8320.

We can use single or dual simcard slot for two different phone number that standby together, but we only can received one phone call at one time. The screen use 6.56 inches LCD screen with HD resolutions. We can use Android 12 operating system when the first time open from the box. Find more solutions and information about how to solve Oppo A77 4G CPH2385 troubles at community.

What are Advantages of OPPO A77 4G Specifications and Features?

  • Network GSM 3G HSDPA or 4G LTE with Dual simcard slot
  • LCD 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 & 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 A77

This phone work with multi cameras. But some users get problems with rear or selfie camera at OPPO A77. Follow this page to fix the camera problems.

How to Fix or Problem Solving for Recovery OPPO A77 4G (CPH2385) hang or not responding or malfunctions or stuck or freezing or bricked ?

OPPO A77 4G (CPH2385) has mid-end processor MediaTek MT6765G Helio G35 with two options of internal storage 128 GB or 64 GB. We can download many applications from Google Play Store, but we need to read many user reviews before install new or not famous applications. Because some of them may contain viruses or malware that can stolen our data or installed some unknown applications.

Our OPPO A77 4G wil get some troubles like become hang or freezing or lagging 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 Make Faster OPPO A77. Boost Performance?

Some users can not use OPPO A77 for playing some games. Why? Please follow this page to get more information about solutions to fix lagging issues.

How to Force Shutdown or Force Soft Reset or Reboot or Restart OPPO A77 4G (CPH2385) ?

OPPO A77 4G has 4 GB RAM. Some other 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 A77 4G turning off or shutdown.

Performing reboot or restart is recommended anytime we want, because it can help to make our OPPO A77 4G 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 backup data or Contact at OPPO A77 4G (CPH2385)?

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 A77 4G with flash drive at USB OTG port.

If our OPPO A77 4G 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 A77

Some users get important data loss issues for when using OPPO A77. Follow this page for simple steps to restore deleted data inside OPPO A77.

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 A77 4G (CPH2385) with software menu

  1. Turn on the OPPO A77 4G
  2. Make sure the battery is not empty
  3. Backup important data at OPPO A77 4G 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 A77 4G will do the master reset process.

hard reset oppo a77 4g

#Option 2, Hard Reset OPPO A77 4G (CPH2385) Factory Default using Hardware Secret Button Key

If we can not go to menu, or OPPO A77 4G 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 A77 4G
  2. Make sure the battery OPPO A77 4G 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 A77 4G will continue master reset, wait for several minutes until OPPO A77 4G start like new again.

How to Unlock or Fix or Bypass or Solutions for OPPO A77 4G (CPH2385) forgot password code or security lock screen pattern or pin (lost password)?

We have to make sure our phone has good security protection to secure all important data from unauthorized people, especially when OPPO A77 4G away from us or lost or stolen. We can use fingerprint that located at side body. Front camera 8 megapixel can be use for facial recognizing.

We need to choose secondary protection for backup like screen lock pattern or pin or password. Why? Because after OPPO A77 4G reboot or restart, the fingerprint or face detection will not work. We have to unlock using secondary protections. 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 A77 4G 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 A77 4G (CPH2385)?

There is no secret hidden code for OPPO A77 4G 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 A77 4G (CPH2385) ?

When we need to remove or wipe any data and applications from OPPO A77 4G, 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 A77 4G.

How to Make Battery of OPPO A77 4G (CPH2385) Stronger, Life Longer and Not Fast to Drain ?

We can use OPPO A77 4G more longer because it has big battery 5000 mAh capacity. However, if we use it too much for playing games or watching movie several hours continuously, then the battery will not enough. We have to do some adjustment to make the battery work longer. Please turn off all not use connections like GPS or Bluetooth or WiFi. We have to make the screen brightness as low as possible.

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