Qcom Phone Downloader Tool: If you wish to download the latest version of Qcom Phone Downloader, then head over to Qcom Phone Downloader page.
Flash Tool: If you wish to download the latest version of QFIL Flash Tool, then head over to QFIL Flash Tool page. Follow the How-to Flash Manual to Flash or install the Firmware on your Vivo Y21L device.Install the provided USB Driver on the Computer (if the USB Driver is already installed, then SKIP this step).After extracting the package, you will be able to get the Firmware File, Flash Tool, Driver, and How-to Flash Guide.