Tips and tricks to fix OPPO A55 (CPH2325) problems. Some users still does not need to use 5G broadband connection, therefore Oppo release OPPO A55 4G version with dual simcard slot standby together. The processor is powered by MediaTek MT6765G Helio G35 with dedicated GPU (graphic processor unit) PowerVR GE8320 for gaming graphic rendering. The first OS use Android 11 with ColorOS 11.1 Oppo user interface.

The screen use IPS 6.51 inches size HD resolutions. This phone has splash proof protection at the body, but we can not bring this phone to swim. The front camera 16 megapixel is located at top right of the screen. We will give more solutions, reviews and information about how to solve troubles of OPPO A55 at community.


What are Advantages of OPPO A55 Specifications and Features?

  • Network GSM 3G HSDPA or 4G LTE with Dual simcard slot
  • LLCD 6.51 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
  • Memory Internal 64 GB with 4 GB
  • Memory Internal 128 GB with 6 GB
  • Main Camera Triple 50 MP f/1.8 + 2 MP f/2.4 + 2 MP f/2.4
  • Main Camera Features autofocus, LED flash
  • Front Camera 16 MP for video conference and selfie photography
  • Operating System Android 11
  • Battery Li-Po 5000 mAh



How to Fix or Problem Solving for Recovery OPPO A55 hang or not responding or malfunctions or stuck or freezing or bricked ?

We can use 64 GB or 128 GB internal memory options, but having bigger storage will use bigger RAM as well. We can use MicroSDXC for extend the storage because it has dedicated external memory slot. There are many applications that we can download from Google Play Store, but we need to read many user reviews before install any applications. Why?

Because some new or not famous applications may contain viruses or malware that can make troubles if installed on our OPPO A55 such as 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.

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 A55 ?

64 GB storage version has 4 GB RAM, but the 128 GB storage use 6 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 A55 turning off or shutdown.


Performing reboot or restart is recommended anytime we want, because it can help to make our OPPO A55 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 A55 ?

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.

If our OPPO A55 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.


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

#Option 1, Hard Reset OPPO A55 with software menu

  1. Turn on the OPPO A55
  2. Make sure the battery is not empty
  3. Backup important data at OPPO A55 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 A55 will do the master reset process.



hard reset oppo a55 4g

#Option 2, Hard Reset OPPO A55 Factory Default using Hardware Secret Button Key

If we can not go to menu, or OPPO A55 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 A55
  2. Make sure the battery OPPO A55 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 A55 will continue master reset, wait for several minutes until OPPO A55 start like new again.


How to Unlock or Fix or Bypass or Solutions for OPPO A55 forgot password code or security lock screen pattern or pin (lost password)?

The internal memory 64 GB or 128 GB will keep many important data and private photos videos that taken from triple cameras 50 megapixel for wide + 2 megapixel for macro + 2 megapixel for depth of field. We have to make sure all confidential data always secure from unauthorized people, especially when OPPO A55 stone or lost or away from us.

The fingerprint is ready to use that located at side body. We can use 16 megapixel front camera for facial recognizing. We have to activate secondary protection for backup like screen lock pattern or pin or password. Because it will use for unlock OPPO A55 after reboot or restart. At this time fingerprint and face detection will not work. 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 A55 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 A55 ?

There is no secret hidden code for OPPO A55 to make it back to factory default. Do the options above to hard reset it.


How to Format or Erase Phone Memory at OPPO A55 ?

When we need to remove or wipe any data and applications from OPPO A55, 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 A55.


How to Make Battery of OPPO A55 Stronger, Life Longer and Not Fast to Drain ?

OPPO A55 (CPH2325) use 5000 mAh battery capacity. The battery is non removable type. It has fast charging 18W technology. With this big battery, several user can use this phone more then one day. But for active users, the battery drain problems may happen.

To make OPPO A55 battery work more longer, we need to do some adjustment. First please disable all not use connections like GPS or Wifi or Bluetooth. We also have to make LCD screen not too bright to reduce battery power usage.