The loader fails for several reasons:
This is used for system updates and factory resets. vivo v9 loader
Warning: Without a valid Vivo authorized account (rarely given to public), the Firehose loader will reject communication with Sahara Fail: Authentication required. The loader fails for several reasons: This is
This is the advanced fix for a corrupted "Vivo V9 loader." You will need a PC, a USB cable, and the stock firmware (PD1731F_EX_A_*.zip). The Process:
Requirements:
The Process:
Warning: This will void any remaining warranty and erase all user data. It also requires a specific version of the loader compatible with the V9’s anti-rollback protection.