How to Easily Master Format OPPO R15 (PRO) with Safety Hard Reset?

Tips and tricks to fix OPPO R15 (PRO) problems. When it is release in the market, Oppo show two different version of OPPO R15, they are with and without pro. Actually the main differences between OPPO R15 and OPPO R15 PRO is the processor version and main camera resolutions, almost all specifications are same. This phone already use Android Oreo version 8.1 when the first time produce, it will get several upgrade firmware. This phone LCD screen is 6.28 inches with notch like iPhone X version, it have 19:9 aspect ratio. Find more review and information how to solve problems of OPPO R15 (PRO) at community.

What is Advantage of OPPO R15 (PRO) Specifications?

Network GSM 3G HSDPA or with 4G LTE Dual simcard
LCD 6.28 inches with notch
Processor Octa-core 4×2.0 GHz Cortex-A73 & 4×2.0 GHz Cortex-A53 for OPPO R15
Processor Octa-core 4×2.2 GHz Kryo 260 & 4×1.8 GHz Kryo 260 for OPPO R15 (PRO)
Bluetooth / GPS / Wifi
Memory Internal 128 GB with 6 GB RAM
External memory 256 GB microSD use sim 2 slot
Main Camera 16 MP f/1.7 + 5 MP f/2.2, autofocus, LED flash for OPPO R15
Main Camera 16 MP f/1.7 + 20 MP f/1.7, autofocus, LED flash for OPPO R15
Front Camera 20 MP for video conference and selfie photography
Operating System Android Oreo 8.1
Battery Li-Ion 3450 mAh

How to Fix or Problem Solving for Recovery OPPO R15 (PRO) hang or not responding or malfunctions or stuck or freezing or bricked ?

This phone release with dual type of processor. The one with cheaper price is OPPO R15, it use Mediatek MT6771 Helio P60 Processor and have smaller dual camera resolutions with 16 MP + 5 MP. The more expensive one is OPPO R15 PRO, it is use Qualcomm SDM660 Snapdragon 660 processor with main camera dual 16 MP + 20 MP. But as far as we know, both have good performance for standard activity. It have big internal memory 128 GB with 6 GB RAM for more multitasking. We can install many applications because it have big internal memory. The applications like Facebook, Instagram, Skype, Line Messenger, Telegram, Whatsapp, WeChat, Viber, Snapchat, Blackberry Messenger (BBM).
Please remember, although this phone have big internal memory, we still need to choose carefully the applications that we want to install, because many applications at Google Play Store may contain viruses or malware that can make our OPPO R15 (PRO) became crash or corrupt. Usually trouble available at not famous or new apps. They not get Verified by Play Protect information.

What do we have to do? First we have to try do soft reset or reboot or restart to remove temporary files or caches that can make some trouble at this phone. If our OPPO R15 (PRO) can boot again, then please directly download one good antivirus applications from Google Play Store like AVAST or NORTON, please choose only one we like. The antivirus will try to scan all installed applications and give recommendation setting to our phone. If the problems still happen, then next steps is doing hard reset or master format. Please note, doing hard reset will remove or erase all important data, therefore we have to backup all data first before doing master format. Doing hard reset will remove all Google account from OPPO R15 (PRO). For safety reasons, please do not install any unknown APK files, because it is very easy to make our phone getting trouble.

How to Force Shutdown or Force Soft Reset or Reboot or Restart OPPO R15 (PRO) ?

With good specifications, this phone will not easily get trouble or RAM insufficient. But once it is happen, it can make some troubles like hang or not responsive with our finger touch. At this situation we need to do soft reset or reboot to remove temporary files and caches. Please press and hold POWER button until OPPO R15 (PRO) 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 R15 (PRO) 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 R15 (PRO) ?

We can use microSD external card to copy or move important files using File Manager applications. If our OPPO R15 (PRO) 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 R15 (PRO) with software menu

  1. Turn on the OPPO R15 (PRO)
  2. Make sure the battery is not empty
  3. Backup important data at OPPO R15 (PRO) 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 R15 (PRO) will do the master reset process.

hard reset oppo r15 & oppo r15 pro

#Option 2, Hard Reset OPPO R15 (PRO) Factory Default using Hardware Secret Button Key

If we can not go to menu, or OPPO R15 (PRO) 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 R15 (PRO)
  2. Make sure the battery OPPO R15 (PRO) 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 R15 (PRO) will continue master reset, wait for several minutes until OPPO R15 (PRO) start like new again.

How to Unlock or Fix or Bypass or Solutions for OPPO R15 (PRO) forgot password code or security lock screen pattern or pin (lost password)?

This phone have big internal memory with 128 GB. If we need more storage, then we can use second simcard slot for external memory with maximum 256 GB microsd memory. This phone will save many important files after use several month. Moreover, the good dual camera and front selfie camera also will keep many private pictures at memory. We need to secure all data inside OPPO R15 (PRO) when this phone away from us or lost or stolen. We recommended use fingerprint which located at back side of body. We need to register our finger several time to make it recognize to unlock. Fingerprint work together with alternative protections, we suggest to use screen lock pattern. There are also other option like password pin protections. The problems will start happen when we can not unlock this phone or our fingerprint can not recognize by this phone to unlock. What should we do?

Do not worry about this trouble, because Android already give solutions when we forgot security screen lock pattern or password pin protections using Google account to unlock it. Please turn on this phone, when it ask for security answer, then please try to give several time wrong answer continuously until OPPO R15 (PRO) locked or freezing about 30 seconds. At this situations we can find Forgot Password / Pattern button. Press this button, to give our Gmail username and password account that we have already signed-in before. If we still can not access Gmail account, then we have to do hard reset using hardware button combination key above.

Is That Any Secret Code for Doing Format OPPO R15 (PRO) ?

There is no secret hidden code for OPPO R15 (PRO) to make it back to factory default. Do the options above to hard reset it.

How to Format or Erase Phone Memory at OPPO R15 (PRO) ?

There are two phone memory type at OPPO R15 (PRO), one is internal memory and the other one is external memory. If we want to format internal memory phone then we have to do hard reset or reformat the operating system of OPPO R15 (PRO) 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 R15 (PRO) Stronger, Life Longer and Not Fast to Drain ?

Both phone use similar battery capacity the OPPO R15 use 3400 mAh and OPPO R15 PRO use 3450 mAh. This phone can work full one day without recharge when we use for standard activity. But we have to know after we install several apps and use them very much then the battery will not enough. We can not replace with bigger battery, because OPPO R15 (PRO) battery is not removable. However, we can do some adjustment like make LCD screen brightness as low as possible. The other steps that we have to do is remove all not use applications, because sometime they will stay at memory to update data or standby. We also have to disable all not use connections like GPS or Bluetooth or Wifi. Just turn it on one by one when we want to use it. Some apps will need to know our location like camera or some other apps, please use GPS battery saving mode from Menu Setting.

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