How to Easily Master Format OPPO A55S with Safety Hard Reset?

Tips and tricks to fix OPPO A55S problems. This phone has 5G connection for broadband Internet access. The first operating system use Android 11 together with ColorOS 11.1 Oppo user interface. This phone has mid-end performance that powered by MediaTek MT6833 Dimensity 700 processor with dedicated GPU (graphic processor unit) Mali-G57 MC2 for graphic rendering.

We can use two different phone numbers because this phone has dual simcard slot that can standby together. But we only can received one call at one time. The screen use IPS 6.5 inches HD resolutions at 720 x 1600 pixels. We will give more information and solutions about how to solve OPPO A55S troubles at community.

What are Advantages of OPPO A55S Specifications and Features?

  • Network GSM 3G HSDPA or 4G LTE + 5G with Dual simcard slot
  • LCD 6.5 inches 20:9 aspect ratio
  • Processor Octa-core 2×2.2 GHz Cortex-A76 & 6×2.0 GHz Cortex-A55
  • GPU Mali-G57 MC2
  • Bluetooth / GPS / Wifi
  • Memory Internal 128 GB
  • RAM 6 GB or 8 GB
  • Main Camera Triple 13 MP f/2.2 + 2 MP f/2.4 + 2 MP f/2.4
  • Main Camera Features autofocus, LED flash
  • Front Camera 8 MP for video conference and selfie photography
  • Operating System Android 11
  • Battery Li-Po 5000 mAh

Solutions To Fix Camera Issues on OPPO A55S

Some users get troubles when using front or rear camera. Follow this page to fix OPPO A55S camera problems.

How to Fix or Problem Solving for Recovery OPPO A55S hang or not responding or malfunctions or stuck or freezing or bricked ?

This phone has mid-range performance with Android 11 operating system. The internal storage is 128 GB with external memory slot for MicroSDXC. We can download many games and applications from Google Play Store. But we have to read many user reviews before download new or not famous apps. Why?

Because some of them may contain viruses or malware that can make troubles if installed on our OPPO A55S such as become hang or freezing or slowly or stuck or broken or LCD touch screen not responsive. They also can stolen our data or install unknown applications. 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 A55S – Fix Slowly Issues?

OPPO A55S slowly problem happen on some users when playing games or doing other activity. Follow this page to make responsive OPPO A55S and fix lagging troubles.

How to Force Shutdown or Force Soft Reset or Reboot or Restart OPPO A55S ?

OPPO A55S has two options of RAM with 6 GB or 8 GB. This is important to support multitasking performance. 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 A55S turning off or shutdown.

Performing reboot or restart is recommended anytime we want, because it can help to make our OPPO A55S 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 A55S ?

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 A55S with flash drive at USB OTG port.

If our OPPO A55S 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 A55S

It is very important to backup all files before some troubles happen on our OPPO A55S. Follow this page to do simple backup procedure on OPPO A55S

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 A55S with software menu

  1. Turn on the OPPO A55S
  2. Make sure the battery is not empty
  3. Backup important data at OPPO A55S 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 A55S will do the master reset process.

hard reset oppo a55s

#Option 2, Hard Reset OPPO A55S Factory Default using Hardware Secret Button Key

If we can not go to menu, or OPPO A55S 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 A55S
  2. Make sure the battery OPPO A55S 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 A55S will continue master reset, wait for several minutes until OPPO A55S start like new again.

How to Unlock or Fix or Bypass or Solutions for OPPO A55S forgot password code or security lock screen pattern or pin (lost password)?

OPPO A55S has 128 GB internal memory. By default all data and applications will be saved inside OPPO A55S storage. Therefore we have to make sure to protect all private data and photos videos that shoot with three back side cameras 13 megapixel for wide + 2 megapixel for macro +2 megapixel for depth of field. We do not want any unauthorized people can access our confidential data on OPPO A55S when away from us or lost or stolen.

We can use fingerprint and face detection using 8 megapixel front camera. But we have to choose secondary protection for backup. Why? Because after OPPO A55S reboot or restart, the fingerprint and facial recognizing will not work. We have to unlock using secondary protection. 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 A55S 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 A55S ?

There is no secret hidden code for OPPO A55S 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 A55S ?

When we need to remove or wipe any data and applications from OPPO A55S, 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 A55S.

How to Make Battery of OPPO A55S Stronger, Life Longer and Not Fast to Drain ?

OPPO A55S battery capacity use 5000 mAh non removable battery. With this capacity, we can run this phone for one day or more. We have to do some adjustment to make the battery work more longer or not get battery drain. We have to make LCD screen brightness as low as possible and turn off all not use connections like like GPS or Bluetooth or Wifi. NFC is not installed on OPPO A55S.

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