Tips and tricks to fix OPPO A31 (CPH2015) problems. This is Android Pie 9.0 smartphone which release in the market at 2020. We still does not have any information about get the upgrade Android firmware version for OPPO A31. The front body have full screen with 6.5 inches LCD size and use HD resolution at 720 x 1600 pixels. This phone use 64 bit Mediatek MT6765V/CB Helio P35 processor with dedicated graphic processor unit (GPU) PowerVR GE8320. At back side of body, there are triple camera vertically ready to take pictures with 12 mp wide + 2 mp macro + 2 mp DOF. Find more review and information about how to solve troubles of OOPPO A31 (CPH2015) at www.hard-reset.org community.

 

What is Advantage of OPPO A31 Specifications?

  • Network GSM 3G HSDPA or with 4G LTE Dual simcard
  • LCD 6.5 inches 20:9 aspect ratio
  • Processor Octa-core 4 x 2.3 GHz Cortex-A53 & 4 x 1.8 GHz Cortex-A53
  • Bluetooth / GPS / Wifi
  • Memory Internal 128 GB
  • RAM 4 GB
  • GPU PowerVR GE8320
  • Main Camera Quad 12 MP f/1.8 + 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 Pie 9.0
  • Battery Li-Po 4230 mAh

 

How to Fix or Problem Solving for Recovery OPPO A31 hang or not responding or malfunctions or stuck or freezing or bricked ?

 

This phone does not have 5G data broadband connections, but we can have fast 4G LTE data broadband. With bigger internal memory 128 GB, we can install many applications from Google Play Store to work with 4G data network, such as video streaming with Youtube or other apps like Facebook, WeChat, Whatsapp, Facebook, Instagram, Kakaotalk, Telegram and many more. Please be careful when we want to download new or not famous applications, because some of them may contain viruses or malware that can make troubles at our OPPO A31 (CPH2015) such as become slowly or hang or stuck or broken or frozen or LCD touch screen not responsive. These kind of apps will not get Verified by Play Protect information / icon. That is why, we need to read as many user review as possible if we must install that kind of applications.

If we get this problem, we have to try remove temporary files and caches inside this phone, because some troubles can be solve with this steps. If we are suspected infected by virus, then please install one good antivirus like Avast or Norton, then scan all content inside this phone. However, if the problems still happen, then we have to do hard reset to reformat our phone. Please remember, doing hard reset or master format can make our important data removed or wiped from this phone, this is also happen with all Google account which will remove from OPPO A31. We are not recommended to install APK from unknown resource for safety reasons.

 

How to Force Shutdown or Force Soft Reset or Reboot or Restart OPPO A31 ?

We can download many apps from Google Play Store because OPPO A31 (CPH2015) have big 128 GB internal storage. But some apps may crash or corrupt that can make troubles at our OPPO A31 like become hang or LCD touch screen not responding with any finger touch. We need to do soft reset or reboot to remove temporary files and caches. Please press and hold POWER button until OPPO A31 shutdown or turn off by itself. After this phone totally off, then we can press again POWER button to turn it ON. This process will not remove any important data, therefore we can do this process anytime we want. If our OPPO A31 still can work properly, but we want to clear temporary files and caches from some applications, then please press and hold POWER button until pop-up menu appear, continue choose Shutdown / Power off / Reboot menu.

 

How to backup data or Contact at OPPO A31 ?

Please use MicroSD to backup all important data inside this phone. We have to choose important data using Android File Manager, then copy that folders and paste to External memory MicroSD.

 

we can use usb-c 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 A31 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.

 

#Option 1, Hard Reset OPPO A31 with software menu

  1. Turn on the OPPO A31
  2. Make sure the battery is not empty
  3. Backup important data at OPPO A31 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 A31 will do the master reset process.

 

hard reset oppo a31

#Option 2, Hard Reset OPPO A31 Factory Default using Hardware Secret Button Key

If we can not go to menu, or OPPO A31 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 A31
  2. Make sure the battery OPPO A31 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 A31 will continue master reset, wait for several minutes until OPPO A31 start like new again.

 

How to Unlock or Fix or Bypass or Solutions for OPPO A31 forgot password code or security lock screen pattern or pin (lost password)?

 

Security is very important to make our data secure from unauthorized people, especially when OPPO A31 away from us or lost or stolen. We suggest to use fingerprint which located at back side of body, because fingerprint is more faster and not easy to guess. Please register our finger several time to make it recognize for unlock. After finish fingerprint, we must choose secondary protections. We can use screen lock pattern or password pin protections. The problems will start happen when we can not unlock this phone or fingerprint can not work for unlock. What should we do?

Don’t worry because we can unlock or bypass forgotten screen lock pattern or password pin protections at OPPO A31 use registered Google account. But we have to force hard reset or master format using hardware button combination key like steps at #Option 2 above. New OPPO smartphone already use latest Android version already implement FRP (Factory Reset Protection). FRP is important to secure our phone when it is stolen or lost. Android will ask to Verify your account with previous Google Account. This procedure target is to make sure that this phone is really belong to us.

At some Android version, we can bypass using previous installed Google account username and password after finish performing hard reset or master format. But at some other version update, we still have to type our screen lock pin or password protections. We can bypass using software at personal computer, but these steps are complicated for many users. Therefore we suggest to ask OPPO service center for bypass protections, but we have to proof that this is our phone. We also recommended to activate or create OPPO ACCOUNT at OPPO A31, because it can help us to bypass forgotten security protections.

HOW TO FORCE SOFT RESET OR RESTART OR REBOOT OPPO A31 LOCKED SMARTPHONE?

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 A31 ?

There is no secret hidden code for OPPO A31 to make it back to factory default. Do the options above to hard reset it.

 

How to Format or Erase Phone Memory at OPPO A31 ?

If we want to format internal memory phone then we have to do hard reset or reformat the operating system of OPPO A31 as well. Please use menu setting to do hard reset or reformat using #option 1 above, but make sure to give checkbox mark at Erase Internal SD card / Internal storage. Then it will reformat the factory default operating system and remove or erase any data inside internal memory.

To reformat or wipe or erase all data at external memory, we can use menu Setting > Storage > Erase Internal Storage / SD Card. Please always make sure all data has already backup before reformat or wipe everything, because it is hard to recover formatted / wiped data at internal or external storage.

 

How to Make Battery of OPPO A31 Stronger, Life Longer and Not Fast to Drain ?

OPPO A31 (CPH2015) battery is 4230 mAh, this is big enough for make it work full one day without need to recharge. The battery is not removable. Therefore we can not have secondary battery backup for heavy users which use this phone very active like watch movie or playing games several hours continuously. To make OPPO A31 (CPH2015) battery work more longer, we suggest 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. OPPO A31 does not have NFC connections.

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