If you are a developer and need the bootloader:
unlocked: no (permanently unless exploited)
: Vivo_V9-1723_PD1730F_8953.mbn (or similar depending on the specific variant).
If you need the (often called "loader" in some forums) to flash via SP Flash Tool or QFIL:
Comprehensive Guide to the Vivo V9 Loader: Unlocking, Flashing, and EDL Mode
Vivo V9 Loader -
If you are a developer and need the bootloader:
unlocked: no (permanently unless exploited) vivo v9 loader
: Vivo_V9-1723_PD1730F_8953.mbn (or similar depending on the specific variant). If you are a developer and need the
If you need the (often called "loader" in some forums) to flash via SP Flash Tool or QFIL: and EDL Mode
Comprehensive Guide to the Vivo V9 Loader: Unlocking, Flashing, and EDL Mode