How to Easily Master Format OPPO A15 with Safety Hard Reset?

Tips and tricks to fix OPPO A15 problems. Low end smartphone without 5G connection. This phone powered by Mediatek MT6765 Helio P35 64 bit processor work with dedicated GPU (graphic processor unit) PowerVR GE8320 for support graphic rendering. The screen use IPS 6.52 inches HD resolution at 720 x 1600 pixels.

This phone has dual simcard standby together. We can use 4G LTE for fast Internet broadband at both simcard, but only one phone call can be received at one time. The first operating system is Android 10.0 together with ColorOS 7.2 Oppo user interface. Some users get software or hardware issues when using OPPO A15, therefore we will try to give more solutions, reviews and information for solving OPPO A15 troubles at community.

What are Advantages of OPPO A15 Specifications and Features?

  • Network GSM 3G HSDPA or 4G LTE with Dual simcard slot
  • LCD 6.52 inches 20:9 aspect ratio
  • Processor Octa-core 4×2.35 GHz Cortex-A53 & 4×1.8 GHz Cortex-A53
  • GPU PowerVR GE8320
  • Bluetooth / GPS / Wifi
  • Memory Internal 32 GB
  • RAM 3 GB
  • Main Camera 13 MP f/2.2 + 2 MP f/2.4 + 2 MP f/2.4
  • Main Camera Features autofocus, LED flash
  • Front Camera 5 MP for video conference and selfie photography
  • Operating System Android 10.0
  • Battery Li-Po 4230 mAh

Easy Solutions To Fix Camera Issues On OPPO A15

How to Fix or Problem Solving for Recovery OPPO A15 hang or not responding or malfunctions or stuck or freezing or bricked ?

This is cheap entry level smartphone with standard storage at 32 GB but still can be extend with MicroSD / MicroSDXC like 16 GB or 64 GB or 128 simcard. We are not recommended to install too many applications from Google Play Store because internal storage is not too big. However, some apps like Facebook or WeChat or Instagram or TikToks still can be install for our productivity.

There are some bad apps inside Google Play Store that can make troubles if installed at our OPPO A15, the problems maybe 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. These apps mostly new or not famous one. Please read many user reviews before install 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 A15. We are not recommended to install APK from unknown resource for safety reasons.

Solutions To Fix Lagging Issues On OPPO A15

How to Force Shutdown or Force Soft Reset or Reboot or Restart OPPO A15 ?

OPPO A15 RAM is 3 GB, it is not too big but still enough for some multitasking apps. But sometime installed applications may crash or corrupt. Our OPPO A15 will run not normal such as 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 A15 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 A15 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 A15 ?

There are some options to backup our important data, because this phone has external memory, then we can use MicroSD / MicroSDXC for backup all important data from internal memory using default Android file manager applications.

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 A15 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 Tips To Backup & Restore Data / Photo / Chat History on OPPO A15

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 A15 with software menu

  1. Turn on the OPPO A15
  2. Make sure the battery is not empty
  3. Backup important data at OPPO A15 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 A15 will do the master reset process.

hard reset oppo a15

#Option 2, Hard Reset OPPO A15 Factory Default using Hardware Secret Button Key

If we can not go to menu, or OPPO A15 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 A15
  2. Make sure the battery OPPO A15 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 A15 will continue master reset, wait for several minutes until OPPO A15 start like new again.

How to Unlock or Fix or Bypass or Solutions for OPPO A15 forgot password code or security lock screen pattern or pin (lost password)?

We always suggest to secure our phone by use security protections or lock screen, because we never know when our OPPO A15 stolen or lost or away from us. If our phone does not have any protections, then unauthorized users can easily access our private and confidential data, including photos videos which taken from triple rear camera.

Fingerprint is recommended to use for accuracy and faster for open. We need to choose secondary protections for backup like screen lock pattern or password pin protections. Fingerprint will not work when we reboot or restart our OPPO A15, at this time secondary protection will be use for activating. However, the problems will start happen when we can not unlock this phone or fingerprint can not work. What should we do?

Don’t worry because we can unlock or bypass forgotten screen lock pattern or password pin protections at OPPO A15 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 toVerify 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 A15, because it can help us to bypass forgotten security protections.


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 A15 ?

There is no secret hidden code for OPPO A15 to make it back to factory default. Do the options above to hard reset it.

How to Format or Erase Phone Memory at OPPO A15 ?

If we want to format internal memory phone then we have to do hard reset or reformat the operating system of OPPO A15 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 A15 Stronger, Life Longer and Not Fast to Drain ?

OPPO A15 has 4230 mAh non removable battery. It does not have fast charging technology. But the battery can work for one day when we use at standard activity. When we want to use OPPO A15 battery work more longer, then please do some adjustment like make LCD screen brightness not too bright and disable all not use connections like GPS or Bluetooth or Wifi. Because this is cheap smartphone, then NFC is removed from OPPO A15.

Leave a Comment