On this page , you will find the VIVO Y21s Flash File (Rom,Firmware) Download link. After Flashing it in your device and you will enjoy a Smoother Android device experience.
Before you downloading the VIVO Y21s Flash File, Please confirm your device is VIVO Y21s, if it is not, you can search the stock firmware which bricks you device in our website.
The Advantages of the VIVO Y21s Flash File:
- Reverting the device back to stock.
- Updating the device to latest android version
- Fixing boot loop issues on your device.
- Improving your software performance
- Fixing Stutter on your device
VIVO Y21s Flash File Information

Rom Name | VIVO Y21s Flash File |
ROM Size | 6.42G |
Rom OS Version | Rom Android 11.0 |
Language pack | Multi Language |
Model name | Y21s |
Compress | Zip format |
VIVO Y21s Flash File Latest Free Download Link 2024
VIVO Y21s Flash Note
- 1. Before downloading, Must make sure take a backup of Your ROM and Personal data as it will Deleted after flashing the stock firmware.
- 2. Please confirm Your Phone Have at least 40-50% Charge when flashing your device.
VIVO Y21s Flash Important Notes:
[*] Disclaimer: Firmware flashing is a tedious process and should be carried out only if you have enough knowledge. We will not be held responsible for any damage to your device.
[*] If you have any problem when using the VIVO Y21s Flash File/Firmware/Rom, or can not find the device model what you want, Please contact us via Contact Us page, and we will make a response as soon as possible.
>> How To Flash VIVO Y21s:
Step 1: The mobile phone should first be unlocked the boot loader.
(If you have unlocked it before, you can skip directly to the second step.)
Step 2: Open the driver folder to install the following drivers.

Step 3: Flash phones
Open the flash_tools folder, find flash_tool and open it.

Step 4: Configure the files
- Click choose to find the MTK_AllInOne_DA.bin file and open it.
- Click choose and go back to find the xs_vivo_Y21s_11.0 folder. Click the Firmware folder, then find MT6765_Android_scatterd and open it.
- Click choose and go back to find the xs_vivo_Y21s_11.0 folder. Click the Flash_tools folder, then find Fileauth_sv5.auth and open it.
- Click to download

Step 5: Authorization
Enter the xs_vivo_Y21s_11.0 folder and click Skip_authorization. Open the mtkclient-gui folder to find the Bypass_SLA_DAA file. Click to open it. After that, turn off the mobile phone, press and hold the volume up button at the same time to connect it with a USB cable. The success page of authorization can be shown as follows.

PS: It will take a long time for the first boot, please wait patiently. After that, please reboot the phone to ensure a better experience.