If you are looking to update or restore this specific version on your device, vivo provides official tools and instructions:
: Typically indicates an "Export" or Global version of the software. 1.70.8 : The specific version number of the update. Device Specifications
The code serves as a unique signature for the software build: : The internal model code for the vivo Y71. pd1731f-ex-a-1.70.8
Enter by holding the Power + Volume Up buttons. Select Install update and navigate to your downloaded file.
refers to a specific firmware version for the vivo Y71 , an entry-level smartphone originally released in April 2018 . This firmware is part of the Funtouch OS ecosystem, which is vivo's custom skin based on Android. Understanding the Identifier If you are looking to update or restore
: For users who need to flash the firmware manually (due to software issues or "bootlooping"), the official vivo India Support site provides a tutorial:
Download the firmware package to your phone storage or SD card. Enter by holding the Power + Volume Up buttons
: The safest method is via Settings > System upgrade to check for the latest available version.