Another popular solution that works with the Qualcomm 9008 port. It features a "Reset Locks (Vivo)" option that is known to work with the Vivo V9 Pro model "vivo 1851" on Android 9, specifically for removing screen locks without wiping user data, though this still requires EDL access.
The Vivo V9 Pro must be placed into EDL mode to communicate with the Firehose file. Power off the device completely. Remove the back cover of the phone.
Before flashing, you must verify your exact device hardware to avoid permanently damaging the motherboard. Specification Vivo V9 Pro / Vivo V9 6GB Model Code Processor Qualcomm Snapdragon 660 (SDM660) Storage Type Interface Mode Qualcomm HS-USB QDLoader 9008 Required Tools and Prerequisites
: Verify that the top of the QFIL screen actively lists your COM port. Click the Download button to begin writing the firmware. vivo v9 pro progemmcfirehose 2021
A is a proprietary programmer configuration file designed for Qualcomm-powered devices. It acts as an authentication and communication bridge between a computer and the phone's flash memory (eMMC or UFS). How It Operates
While the theory of using QFIL and a Firehose programmer is sound, the practical reality for a Vivo device is far more difficult. For the average user, encountering such a situation is typically the point where professional help is not just a convenience but a necessity.
Locate the on the motherboard (two small gold contacts usually situated near the SIM tray or battery connector). Another popular solution that works with the Qualcomm
A professional tool highly effective for one-click FRP and pattern removal on the V9 Pro.
: Recovering a "dead" device that only shows up as Qualcomm HS-USB QDLoader 9008 in the PC's device manager.
Using the correct firehose file requires matching it to the device's hardware. The Vivo V9 Pro features: Vivo V9 EDL Point Pattern Pin & Frp UMT Unlock | ONE CLICK Power off the device completely
Reconnect the internal battery, hold the Power button, and let the device boot up normally. Troubleshooting Common Errors
: A pair of metallic tweezers (required for the EDL test point method). Step-by-Step Guide to Using the Firehose File Step 1: Install Drivers and Set Up the Flashing Tool