Tips and tricks to fix VIVO V21 problems. This is mid-end smartphone that has 5G broadband connection for fast Internet access. It is powered by MediaTek MT6853 Dimensity 800U 5G processor with dedicated GPU (graphic processor unit) Mali-G57 MC3. This phone has dual simcard slot that can standby together. Only one call can be receive in one time.

The screen use AMOLED type 6.44 inches Full HD+ at 1080 x 2400 pixels resolution, with smooth display because it use 90Hz refresh rate. The front camera use 44 megapixel with OIS (optical images stabilization) at located at top of the screen. Some users get issues when using VIVO V21 software and hardware, therefore we will try to give more solutions, reviews and information about how to solve VIVO V21 (V2066) troubles at www.hard-reset.org community.

 

What is Advantage of VIVO V21 Specifications and Features:

  • GSM 3G HSDPA Dual SIM Card GSM+GSM
  • 4G LTE + 5G
  • LCD 6.44 inches FHD
  • Internal memory 128 GB
  • RAM 8 GB
  • Main Camera Triple 64 MP f/1.8 + 8 MP f/2.2 + 2 MP f/2.4
  • Main Camera features phase detection autofocus, LED flash
  • Front camera 44 MP for selfie photography and video
  • Processor Octa-core 2×2.4 GHz Cortex-A76 & 6×2.0 GHz Cortex-A55
  • GPU Mali-G57 MC3
  • Operating system Android 11
  • Battery Li-Po 4000 mAh

 

 

How to Fix or Problem Solving for Recovery VIVO V21 hang or not responding or malfunctions or stuck or freezing or bricked ?

This phone comes with MediaTek MT6853 Dimensity 800U 5G processor that has big internal storage with 128 GB. All data will be installed at this storage. But we still can use external memory MicroSDXC for add additional storage. We can download many applications from Google Play Store.

Please do not install new or not famous applications / developers, because some of them may contain viruses or malware that can make some troubles like stolen our data or hang or become slowly or stuck or bricks or LCD touch screen not responding. Usually it will not get Verified by Play Protect information when we are on downloading process. Please read many user review before install that kind of apps. How to fix it?

We have to try force soft reset or reboot to clean temporary files and caches. After our VIVO V21 can start boot again then please install one good antivirus like NORTON or AVAST, it will scan all installed apps and give recommendation setting for safety use.

If the problems still happen, then we have to do hard reset or master format VIVO V21. All account including Google account will remove or wipe or deleted after finish hard reset. Hard reset process also will remove/erase all important files from internal memory. Please do not install unknown APK, because it is very easy to make our VIVO V21 get some troubles.

 

How to Force Shutdown or Force Soft Reset or Reboot or Restart VIVO V21 ?

RAM is important to make this phone work with multitasking applications. This phone already has big RAM at 8 GB capacity. However, some installed apps may crash or corrupt that can make VIVO V21 become hang or LCD touch screen not responsive with our finger. We need to clean temporary files and cache by force reboot or restart or soft reset. We can pres and hold POWER button for several seconds until turn of by it self. Then try to turn it not again. by pressing power button.

 

We can do this process anytime we want, because our important data will not removed or wipe when performing soft reset, therefore we can do this process anytime we want. If our VIVO V21 still can work properly, but we want to manually clear temporary files and caches from some applications, then please press and hold POWER button until pop-up menu appear, continue to choose Shutdown / Power off / Reboot menu.

 

How to backup data or Contact at VIVO V21 ?

MicroSD / MicroSDXC can be use for backup all important data, photos videos from internal memory. Please choose all important file using Android file manager, copy from internal memory and paste to external memory all important files.

We can use USB data cable for backup all data to PC using File Manager at computer. If our VIVO V21 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.

 

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 VIVO V21 with software menu

  1. Turn on the VIVO V21
  2. It is very important to make sure battery capacity more then 50% or better fully charge
  3. If we still can access file manager or other applications, the please backup all data or photos/videos at VIVO V21 because all data and applications will be erase or delete
  4. Go to Menu :  Setting > More Setting > Backup and Reset > Erase all data
  5. Give check-mark : Erase Phone Storage if we want to clean / wipe all data
  6. Choose : Erase everything
  7. The VIVO V21 will do the hard reset or master format to factory default process.

 

hard reset vivo v21

 

#Option 2, Hard Reset VIVO V21 with Hardware Button Key to Recovery Mode

  1. Turn Off VIVO V21
  2. It is very important to make sure the battery is fully charge
  3. Press and hold POWER BUTTON + VOLUME UP BUTTON key until Fastboot menu appear
  4. Release all POWER BUTTON & VOLUME UP Button
  5. Choose Recovery Mode using VOLUME BUTTON and Press POWER BUTTON for Ok.
  6. Choose Clear Data button, and continue choose Clear all data and wait until wiping data finish
  7. At some version you can try to choose Wipe Data or Clear Data option by tap the menu or using VOLUME BUTTON to go up and down at menu and press POWER Button to Ok or Confirm or Choose. It will wipe all data to finish the Hard Reset or Master Format Steps
  8. Wait until the Use VIVO V21 finish the process and the phone will start again like new

 

How to Unlock or Fix or Bypass or Solutions for VIVO V21 forgot password code or security lock screen pattern or pin (lost password)?

There are many applications that we will install at VIVO V21 (V2066). Some data are very important, including photos videos that taken from 44 megapixel front camera or triple rear camera 64 megapixel for wide + 8 megapixel for 120 degree ultrawide + 2 megapixel macro. We have to protect all data from unauthorized people when VIVO V21 stolen or away from us or lost.

We can use fingerprint and facial recognizing. The fingerprint sensor is under display, if we get accuracy issues, usually because we use thick or non standard screen protection. Please remove any 3th party screen protection or tempered glass for better VIVO V21 fingerprint accuracy.

We have to use secondary protection for backup like pin or screen lock pattern or password. Because the fingerprint and face detection will not work after VIVO V21 reboot or soft reset or restart. We have to use secondary protection for unlock. However, the problems will start happen when we can not unlock this phone or forgot security answer or pattern or fingerprint sensor can not open with our finger hand. What should we do?

We can bypass or unlock forgotten security protections. But the only option that we can use is doing hard reset or master format. Please follow steps at #option 2 above to do hard reset or reformat using hardware button combination key.

Please understand, that our VIVO V21 already use latest Android version. It is already have strong security protections. This phone already have FRP (Factory Reset Protection), FRP will make sure this phone is belong to us. It will ask to Verify your account with previous Google Account. Therefore we have to keep carefully our Gmail / Google account for bypass FRP protections at VIVO V21.

 

Is That Any Secret Code for Doing Format VIVO V21 ?

There is no secret hidden code for VIVO V21 to make it back to factory default. Do the options above to hard reset it.

 

How to Format or Erase Phone Memory at VIVO V21 ?

There are two phone memory type at VIVO V21, 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 VIVO V21 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 VIVO V21 Stronger, Life Longer and Not Fast to Drain?

VIVO V21 (V2066) battery capacity is 4000 mAh. This is already big for make it work full one day without recharge. If we use this phone very active, then the battery will not enough. We have to do some adjustment to make VIVO V21 battery work morel longer, such as set LCD screen brightness as low as possible and disable all not use connection like GPS or Bluetooth or Wifi. NFC is not available on VIVO V21.

 

More FAQ of VIVO V21:

  • How to Hard Reset Vivo Camera and Music ?

    They are different procedures, but we will try to give one by one. To Reset VIVO camera setting, we have to open Main Camera Applications, then find menu Setting or Icon Setting, and find Restore Default Setting. For reset music, actually it is depend on what kind of apps to hear the music.

  • How To Remove or Bypass Forgotten Pattern or Password or Passcode at VIVO V21 (Reformat Without Password) ?

    We always recommended to give security for anyone for secure data, but the problems comes when you can not unlock this phone. Please try to do hard reset using hardware button combination key like steps at #option 2 above. This process will reformat your VIVO V21 operating system to factory default for remove security password or pattern protection. After finish hard reset, you should try to make sure this phone is belong to you by sign-in with Previous Google Account account for security protections.