How to Easily Master Format OPPO K11 with Safety Hard Reset?

Tips and tricks to fix OPPO K11 problems. This phone has 5G connections that work work with dual simcard slot standby together. It has big screen AMOLED 6.7 inches with 120Hz refresh rate. The first operating system work with Android 1 and ColorOS 11.

We can use this phone for playing games and doing some other activity, because it is powered by mid-end processor Qualcomm Snapdragon 782G. We will give more solutions and information review about how to solve troubles of OPPO K11 at community.

What are Advantages of OPPO K11 Specifications and Features?

  • Network GSM 3G HSDPA or 4G LTE + 5G with Dual simcard slot
  • LCD 6.7 inches 20:9 aspect ratio
  • Processor Octa-core 1×2.7 GHz Cortex-A78 & 3×2.4 GHz Cortex-A78 & 4×1.8 GHz Cortex-A55
  • GPU Adreno 642L
  • Bluetooth / GPS / Wifi / NFC
  • Memory Internal 256 GB with 8 GB or 12 GB RAM
  • Memory Internal 512 GB with 12 GB RAM
  • Main Camera Triple 50 MP f/1.8 + 8 MP f/2.2 + 2 MP f/2.4
  • Main Camera Features autofocus, LED flash
  • Front Camera 16 MP for video conference and selfie photography
  • Operating System Android 13
  • Battery Li-Po 5000 mAh

Solutions To Fix Camera Issues on OPPO K11

Follow this page to fix front or main camera problems when using OPPO K11 Android smartphon

How to Fix or Problem Solving for Recovery OPPO K11 hang or not responding or malfunctions or stuck or freezing or bricked ?

This phone has big internal memory options with 256 GB or 512 GB. We can download many games and apps from Google Play Store. Please read many user reviews before install new or not famous apps. Why? Because some of them may contain viruses or malware or threat.

Our OPPO K11 will get some trouble like installed unknown apps 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 K11 ?

This is mid-end smartphone with big RAM options, we can choose to buy 8 GB or 12 GB RAM capacity. 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 K11 turning off or shutdown.

Performing reboot or restart is recommended anytime we want, because it can help to make our OPPO K11 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 K11 ?

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 K11 with flash drive at USB OTG port.

If our OPPO K11 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 K11

We have to make sure all important files are backup properly. Follow this page to do it easily.

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 K11 with software menu

  1. Turn on the OPPO K11
  2. Make sure the battery is not empty
  3. Backup important data at OPPO K11 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 K11 will do the master reset process.

hard reset OPPO K11

#Option 2, Hard Reset OPPO K11 Factory Default using Hardware Secret Button Key

If we can not go to menu, or OPPO K11 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 K11
  2. Make sure the battery OPPO K11 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 K11 will continue master reset, wait for several minutes until OPPO K11 start like new again.

How to Unlock or Fix or Bypass or Solutions for OPPO K11 forgot password code or security lock screen pattern or pin (lost password)?

This phone has 256 B or 512 GB internal memory options. We will have many important data and photos videos that shoot from triple back side camera 50 megapixel for wide, 8 megapixel for 112 degree ultrawide and 2 megapixel for macro. Therefore, we have to protect all data from unauthorized people.

Please use fingerprint that located under display. We also can use facial recognizing using 16 megapixel front camera. The secondary protection need to choose like pin or password or screen lock patter, because after OPPO K11 reboot or restart the fingerprint or face unlock 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 K11 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 K11 ?

There is no secret hidden code for OPPO K11 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 K11 ?

When we need to remove or wipe any data and applications from OPPO K11, 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 K11.

How to Make Battery of OPPO K11 Stronger, Life Longer and Not Fast to Drain ?

OPPO K11 has 5000 mAh battery capacity. We can use it for full one day. However, please do some adjustment to make the battery work more longer. We have to make LCD screen brightness as low as possible. We also have to turn off all not use connections like GPS or Bluetooth or WiFi or NFC.

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