How to Easily Master Format VIVO Y21A with Safety Hard Reset?

Tips and tricks to fix VIVO Y21A problems. This is non 5G smartphone with dual simcard slot. We can use 4G LTE for broadband Internet access or 3G or 2G at limited locations. It is powered by Mediatek MT6762 Helio P22 with PowerVR GE8320 GPU (graphic processor unit). The first operating system use Android 11 together with Funtouch 11.1 Vivo user interface.

The screen size is 6.1 inches HD resolutions. We can see notch drop on top screen to hold front camera 8 megapixel. The phone body use solid plastic with two kind of color options. We will give more solutions and information about how to solve VIVO Y21A troubles at www.hard-reset.org community.

What is Advantage of VIVO Y21A Specifications and Features:

GSM 3G HSDPA Dual SIM Card GSM+GSM
4G LTE
LCD 6.51 inches HD
Internal memory 64 GB
RAM 4 GB
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 2.0 GHz Cortex-A53
GPU PowerVR GE8320
Operating system Android 11
Battery Li-Po 5000 mAh

How to Fix or Problem Solving for Recovery VIVO Y21A hang or not responding or malfunctions or stuck or freezing or bricked ?

VIVO Y21A is entry level smartphone that work with Mediatek MT6762 Helio P22 processor. It has 64 GB internal memory capacity, but some of them are use for operating system and factory default apps, therefore we will not get full 64 GB free storage. Please choose only important applications to safe storage capacity when we want to download from Google Play Store.

Please do not install new or not famous apps before read many user reviews. Because some developers created apps or games with malware, threat or viruses. It can make some troubles to our VIVO Y21A such as 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 Y21A.

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 Y21A ?

This phone has 4 GB RAM capacity. There are some installed applications that may crash or corrupt, which can make VIVO Y21A 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 Y21A ?

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 Y21A 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 Y21A with software menu

Turn on the VIVO Y21A
It is very important to make sure battery capacity more then 50% or better fully charge
If we still can access file manager or other applications, the please backup all data or photos/videos at VIVO Y21A because all data and applications will be erase or delete
Go to Menu : Setting > More Setting > Backup and Reset > Erase all data
Give check-mark : Erase Phone Storage if we want to clean / wipe all data
Choose : Erase everything
The VIVO Y21A will do the hard reset or master format to factory default process.

#Option 2, Hard Reset VIVO Y21A with Hardware Button Key to Recovery Mode

Turn Off VIVO Y21A
It is very important to make sure the battery is fully charge
Press and hold POWER BUTTON + VOLUME UP BUTTON key until Fastboot menu appear
Release all POWER BUTTON & VOLUME UP Button
Choose Recovery Mode using VOLUME BUTTON and Press POWER BUTTON for Ok.
Choose Clear Data button, and continue choose Clear all data and wait until wiping data finish
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
Wait until the Use VIVO Y21A finish the process and the phone will start again like new

How to Unlock or Fix or Bypass or Solutions for VIVO Y21A forgot password code or security lock screen pattern or pin (lost password)?

VIVO Y21A has 64 GB internal memory for keep all data and applications. We have to secure all data from unauthorized people, especially when VIVO Y21A away from us or lost or stolen. Moreover, because it has dual camera 13 megapixel for wide + 2 megapixel for macro, we also have to protect our private photos and videos.

We can use fingerprint or face detection from 8 megapixel front camera. We have to activate secondary protection for backup like password or screen lock pattern or pin. Because fingerprint and face detection will not work after VIVO Y21A finish reboot or restart. 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 Y21A when we forgot security protections. Please use #option 2 above to do hard reset using hardware button combination key.

VIVO Y21A 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 Y21A ?

There is no secret hidden code for VIVO Y21A 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 Y21A ?

If we want to remove or erase all data inside VIVO Y21A 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 Y21A Stronger, Life Longer and Not Fast to Drain?

VIVO Y21A battery is 5000 mAh. It can work full one day or more for support our activity. The battery also has fast charging 18W. The problems happen when we use this phone too active for play games or watch movie several hours continuously, then the battery will not enough.

We have to make some adjustment to make VIVO Y21A work more longer. Please make LCD screen brightness as low as possible and disable all not use connections like GPS or Bluetooth or Wifi. NFC is not available on VIVO Y21A.

More FAQ of VIVO Y21A:

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 Y21A (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 Y21A 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.