How to Easily Master Format OPPO RENO4 with Safety Hard Reset?

Tips and tricks to fix OPPO RENO4 problems. We have to notice that this is downgrade version of OPPO RENO4 5G. Yes, this phone does not have 5G data broadband. It work with 4G LTE for fast video streaming and playing games or do any productivity. By design, both versions are similar. OPPO RENO4 use Super AMOLED 6.4 inches with Full HD+ resolutions at 1080 x 2400 pixels.

Although OPPO RENO4 use same Qualcomm processor, but it use different processor. This phone use Qualcomm SM7125 Snapdragon 720G with 8 nm technology together with Adreno 618 for faster gaming rendering performance. It is use Android 10.0 as factory default operating system with ColorOS 7.2 Oppo user interface. Some users get issue when use OPPO RENO4 (NON 5G) hardware or software. Therefore we will try to give more solutions, reviews, and information about how to solve OPPO RENO4 troubles at community.

What are Advantages of OPPO RENO4 Specifications and Features?

  • Network GSM 3G HSDPA or 4G LTE with Dual simcard slot
  • LCD 6.4 inches 20:9 aspect ratio
  • Processor Octa-core 2×2.3 GHz Kryo 465 Gold & 6×1.8 GHz Kryo 465 Silver
  • Bluetooth / GPS / Wifi / NFC
  • Memory Internal 128 GB
  • RAM 8 GB
  • GPU Adreno 618
  • Main Camera Quad 48 MP f/1.7 + 8 MP f/2.2 + 2 MP f/2.4 + 2 MP f/2.4
  • Main Camera Features autofocus, LED flash
  • Front Camera 32 MP for video conference and selfie photography
  • Operating System Android 10.0
  • Battery Li-Po 4015 mAh

Solution To Fix Camera Issues On OPPO RENO4

How to Fix or Problem Solving for Recovery OPPO RENO4 hang or not responding or malfunctions or stuck or freezing or bricked ?

OPPO RENO4 only have 1 option for internal memory with 128 GB with 8 GB RAM. This phone still has external memory slot with MicroSD / MicroSDXC for extend the storage. We can install many applications from Google Play Store whether paid or free apps like Facebook or WeChat or Instagram or some other more.

Please be careful when we want to install new or not famous applications, because some of them may contain viruses or malware that can make troubles if installed at our OPPO RENO4 such as become slowly or hang or stuck or broken or frozen or LCD touch screen not responsive. We suggest to read many user review before install that applications. These kind of apps will not get Verified by Play Protect information or notification.

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 RENO4. 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 RENO4 ?

8 GB is enough RAM capacity for multitasking performance. But some installed apps may crash or corrupt. Our OPPO RENO4 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 RENO4 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 RENO4 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 RENO4 ?

This phone has external memory slot for backup any data from internal storage to external memory by using Android file manager.

we also 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 RENO4 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 Procedure to Backup & Restore Data, Photos on OPPO RENO4

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 RENO4 with software menu

  1. Turn on the OPPO RENO4
  2. Make sure the battery is not empty
  3. Backup important data at OPPO RENO4 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 RENO4 will do the master reset process.

hard reset oppo reno4

#Option 2, Hard Reset OPPO RENO4 Factory Default using Hardware Secret Button Key

If we can not go to menu, or OPPO RENO4 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 RENO4
  2. Make sure the battery OPPO RENO4 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 RENO4 will continue master reset, wait for several minutes until OPPO RENO4 start like new again.

How to Unlock or Fix or Bypass or Solutions for OPPO RENO4 forgot password code or security lock screen pattern or pin (lost password)?

OPPO RENO4 have for camera at back side of body with 48 megapixel for wide + 8 megapixel for ultrawide + 2 megapixel for macro + 2 megapixel for DOF. We will have many private photos videos after use several months. Moreover this phone have big internal memory for install many important applications. We need to secure all data from unauthorized people when OPPO RENO4 away from us or stolen or lost.

We can use fingerprint which located at in-display / under display. We need to register our finger several time to make it recognize for unlock. But we also can use front camera for face unlock detection. Secondary protections should be activate for backup, we can choose screen lock pattern or password pin protections. 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 RENO4 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 RENO4, 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 RENO4 ?

There is no secret hidden code for OPPO RENO4 to make it back to factory default. Do the options above to hard reset it.

How to Format or Erase Phone Memory at OPPO RENO4 ?

If we want to format internal memory phone then we have to do hard reset or reformat the operating system of OPPO RENO4 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 RENO4 Stronger, Life Longer and Not Fast to Drain ?

OPPO RENO4 has 4015 mAh non removable battery with fast charging 30W technology. Some users can use this phone full one day for standard activity. If we want to use this phone more longer when use it for playing games or watch movie, then we need to do some adjustment like make LCD screen not too bright and disable all not use connection like Bluetooth or Wifi or GPS. OPPO RENO4 does not have NFC connection.

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