Tips and tricks to fix VIVO Y21G problems. This is Android smartphone that work without 5G connections. It is use Mediatek MT6769 Helio G70 processor and has dedicated GPU Mali-G52 2EEMC2 for graphic rendering. The first operating system use Android 11 with Funtouch 11.1 Vivo user interface.

The screen size 6.51 inches using HD resolutions at 720 x 1600 pixels. this phone has dual rear cameras and single front camera 8 megapixel with notch drop. We can use dual simcard with different phone numbers standby together. We will give more solutions and information about how to solve troubles of VIVO Y21G (V2152) at community.


What is Advantage of VIVO Y21G Specifications and Features:

  • 4G LTE
  • LCD 6.51 inches HD
  • Internal memory 64 GB with 4 GB RAM
  • Main Camera Dual 13 MP f/2.2 + 2 MP f/2.4
  • Main Camera features phase detection autofocus, LED flash
  • Front camera 8 MP for selfie photography and video
  • Processor Octa-core 2×2.0 GHz Cortex-A75 & 6×1.7 GHz Cortex-A55
  • GPU Mali-G52 2EEMC2
  • Operating system Android 11
  • Battery Li-Po 5000 mAh



How to Fix or Problem Solving for Recovery VIVO Y21G hang or not responding or malfunctions or stuck or freezing or bricked ?

VIVO Y21G is powered by Mediatek MT6769 Helio G70 processor. It has 64 GB internal storage with external memory for MicroSDXC. There are many games and applications that we can download from Google Play Store. But we have to read many user reviews before download new or not famous apps. Why?

Because some developers create fake games and fake apps, but they may contain threat or malware or viruses. Sometime they can stolen our data and install unknown applications. Our VIVO Y21G may get some troubles like become slowly or lagging or hang or stuck or bricks or LCD touch screen not responding. This bad applications will not get Verified by Play Protect information when we are on downloading process.

How to fix this problems? We have to clean temporary files and caches from phone storage by performing soft reset or reboot or restart. When our phone finish restart, then please install recommended antivirus like NORTON or AVAST. This antivirus will scan all installed applications and give safe Setting recommendation options inside VIVO Y21G.

When this phone still get same problems, we need to do hard reset or master format to make it back to factory default. This process will remove all installed applications and data. Hard reset will erase or remove all Google account from this phone. We suggest only install recommended apps and do not install any unknown APK files.


How to Force Shutdown or Force Soft Reset or Reboot or Restart VIVO Y21G ?

VIVO Y21G has 4 GB RAM. Some installed applications may crash or corrupt, that can make VIVO Y21G get some troubles like become hang or LCD touch screen not responsive. We need to do soft reset or reboot to clean up temporary files and caches.


Please Press and Hold Power Button for several seconds until this phone turn off by itself. Then we can try to turn it on again. Usually this phone will work normally after restart.

We can force to clean temporary files and caches when this phone still work properly. How to do that? Press and hold Power Button until pop-up menu appear, then choose Reboot / Shutdown / Power Off menu.


How to backup data or Contact at VIVO Y21G ?

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.

There are some other options to backup like using USB OTG for connect with flash drive. After the flash disk connected, then we can choose all important file using Android file manager, copy from internal memory and paste to external flash drive.

We can use USB data cable for backup all data to PC using File Manager at computer. If our VIVO Y21G 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 below may not work for some devices because of firmware update version or hardware troubles or some other possibilities.

#Option 1, Hard Reset VIVO Y21G with software menu


  1. Turn on the VIVO Y21G
  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 Y21G 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 Y21G will do the hard reset or master format to factory default process.


hard reset vivo y21g

#Option 2, Hard Reset VIVO Y21G with Hardware Button Key to Recovery Mode

  1. Turn Off VIVO Y21G
  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 Y21G finish the process and the phone will start again like new


How to Unlock or Fix or Bypass or Solutions for VIVO Y21G forgot password code or security lock screen pattern or pin (lost password)?

We have to make sure all important data and applications always protected, including photos videos that shoot from dual rear cameras 13 megapixel for wide + 2 megapixel for macro. Therefore we have to choose security protections for secure all data when VIVO Y21G lost or stolen or away from us.

Fingerprint is located at side body. We can use 8 megapixel front camera for facial recognizing. We have to choose secondary protections for backup because after VIVO Y21G reboot or restart, the face detection or fingerprint will not work. 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 have to force hard reset or reformat VIVO Y21G when we forgot security protections. Please use #option 2 above to do hard reset using hardware button combination key.

VIVO Y21G use latest Android version that already have FRP (factory reset protection) feature. This is important to protect our phone when lost. We have to confirm the ownership by verified using previous Google account username and password when we re-setup again like new.


Is That Any Secret Code for Doing Format VIVO Y21G ?

There is no secret hidden code for VIVO Y21G to make it back to factory default. Do the options above to hard reset this phone.


How to Format or Erase Phone Memory at VIVO Y21G ?

If we want to remove or erase all data inside VIVO Y21G storage, the easiest way is by performing hard reset whether using #option 1 or #option 2 above. When we do #option 1 process, we need to choose check box options to Erase Internal SD / Internal Storage data.


How to Make Battery of VIVO Y21G Stronger, Life Longer and Not Fast to Drain?

VIVO Y21G model is V2152. It has big battery at 5000 mAh. This battery can work for one or two days. If we want to make VIVO Y21G battery work more longer, please do some adjustment like make LCD screen brightness as low as possible and turn off all not use connections like GPS or Bluetooth or WiFi. NFC hardware is not available on VIVO Y21G.


More FAQ of VIVO Y21G:

  • 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 Y21G (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 Y21G 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.