How to Easily Master Format OPPO A11S with Safety Hard Reset?

Tips and tricks to fix OPPO A11S problems. When we live at non-5G country, it is enough to have 4G broadband Internet like OPPO A11S with dual simcard slot standby together. The processor use Qualcomm SM4250 Snapdragon 460 with Adreno 610 as dedicated GPU (graphic processor unit). The first operating system use Android 10 together with ColorOS 7.2 Oppo user interface.

There are two options of storage that we can choose with 64GB or 128GB. All version has external memory slot for MicroSDXC card. The screen size is 6.5 inches with high refresh rate 90Hz and HD resolutions. We will give more solutions to solve OPPO A11S troubles at community.

What are Advantages of OPPO A11S Specifications and Features?

  • Network GSM 3G HSDPA or 4G LTE with Dual simcard slot
  • LLCD 6.5 inches 20:9 aspect ratio
  • Processor Octa-core 4×1.8 GHz Kryo 240 & 4×1.6 GHz Kryo 240
  • GPU Adreno 610
  • Bluetooth / GPS / Wifi
  • Memory Internal 64 GB with 4 GB RAM
  • Memory Internal 128 GB with 4 GB or 8 GB RAM
  • 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 10
  • Battery Li-Po 5000 mAh

Solutions To Fix Camera Issues On OPPO A11S

How to Fix or Problem Solving for Recovery OPPO A11S hang or not responding or malfunctions or stuck or freezing or bricked ?

The disadvantages of OPPO A11S operating system still use Android 10 when the first time release. We do not know when will it get firmware upgrade like Android 11 or more. With enough internal storage 64 GB or 128 GB, we can download many apps from Google Play Store. But we need to read many user reviews when we want to download new or not famous apps. Why?

Because some new apps or games may contain viruses or malware or threat that can make troubles if installed on our OPPO A11S 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.

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 A11S ?

OPPO A11S RAM is 4 GB or 8 GB. Limited RAM will make this phone get lagging or stuck when running more multitasking applications. 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 A11S turning off or shutdown.

Performing reboot or restart is recommended anytime we want, because it can help to make our OPPO A11S 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 A11S – Boost Speed Performance?

How to backup data or Contact at OPPO A11S ?

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 A11S 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.

Complete Solutions To Backup & Restore Data / Contact / Photos on OPPO A11S

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 A11S with software menu

  1. Turn on the OPPO A11S
  2. Make sure the battery is not empty
  3. Backup important data at OPPO A11S 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 A11S will do the master reset process.

hard reset oppo a11s

#Option 2, Hard Reset OPPO A11S Factory Default using Hardware Secret Button Key

If we can not go to menu, or OPPO A11S 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 A11S
  2. Make sure the battery OPPO A11S 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 A11S will continue master reset, wait for several minutes until OPPO A11S start like new again.

How to Unlock or Fix or Bypass or Solutions for OPPO A11S forgot password code or security lock screen pattern or pin (lost password)?

There are many apps and data that we will have after use OPPO A11S for several months. We also will have many private photos videos that shoot with triple cameras 13 megapixel for wide + 2 megapixel for macro + 2 megapixel for depth of field. Therefore we have to activate security protection for make all data safe, especially when OPPO A11S stolen or lost or away from us.

We can use fingerprint that located at back side body and 8 megapixel front camera for facial recognizing. We need to activate secondary protection for backup like screen lock pattern or password or pin. Because the fingerprint or face detection can not work after reboot or restart. 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 A11S 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 A11S ?

There is no secret hidden code for OPPO A11S to make it back to factory default. Do the options above to hard reset it.

How to Format or Erase Phone Memory at OPPO A11S ?

When we need to remove or wipe any data and applications from OPPO A11S, 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 A11S.

How to Make Battery of OPPO A11S Stronger, Life Longer and Not Fast to Drain ?

OPPO A11S work with 5000 mAh battery capacity. It has fast charging 18W. This capacity can make it work full one day or more. However, if we use this phone very active for social media group chat or watching movie or playing games several hours continuously, then the battery will not enough.

We have to do some adjustment like make LCD screen brightness as low as possible and disable all not use connections like GPS or Bluetooth or Wifi. NFC is not available on OPPO A11S.

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