Steps on how to flash vivo Y91 with QFIL Flash Tool:

First of all, visit our Firmware page and download the flash file for your:

• vivo Y91
• Note: You will need to place your phone on charge with a working charger till you are sure it has charged above 50 percent before your formatting process commences else your phone might not wake up even after formatting.
• Next, you will have to follow the instruction of using a QFIL Flash Tool as explained here below.

Step 1: Download and install USB drivers on Your PC for vivo Y91.

Step 2: Or you download and install USB drivers (Preferable) from here.

Step 3: Download QFIL Flash tool (latest version is preferable) from here.

Step 4: Download the stock ROM or Firmware of the vivo Y91 you want to flash.

Step 5: Extract QFIL flash Tool and open the folder, now run (launch) the QFIL flash tool as administrator.

Step 6: Now extract the stock ROM or Firmware you downloaded and go back to QFIL flash tool.

Step 7: Turn off your vivo Y91

Step 8: Now, you will have to press and hold down the Volume UP  and Power Button simultaneously.

Step 9: You Connect your vivo Y91 to your PC with a good working USB cable.

Step 10: Now, using the QFIL flash tool. Browse to locate the flash file and click on the download button.

 

Step 11: After the above step the flashing will start on your vivo Y91.

Step 12: The process should take around 10 to 15 minutes to complete. Be patient and wait till you see Flashing Completed.

Step 13: After the above, your vivo Y91 will reboot automatically.

Step 14: That’s all. Disconnect your vivo Y91 and enjoy.