Flashing firmware is not a click-and-go process. To avoid turning your device into an expensive paperweight, assemble the following:
Here is the verified PD1731-A-1.8.7 flash file : [Link] Password (if any): Flash tool included? Yes/No Instructions included? Yes/No Pd1731-a-1.8.7 Flash File
200MB file size when official is 800MB; executable .exe bundled inside; requests for your Google account during flash. Flashing firmware is not a click-and-go process
also maintain historical firmware versions for troubleshooting older builds like 1.8.7. www.vivo.com executable .exe bundled inside