vivo V9 Pro vivo 1851 Unlock without Data loss using UMT dongle Successful

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Unlock Vivo V9 Pro (Vivo 1851) Without Data Loss – Pattern/Password Unlock Guide

If you’ve forgotten the pattern, password, or PIN on your Vivo V9 Pro (model: vivo 1851), this guide will show you how to unlock your phone without losing data. Using tools like UMT QcFire, you can safely remove the screen lock without performing a factory reset.

📱 Device Info:

  • Model Name: Vivo V9 Pro
  • Model Number: vivo 1851
  • Processor: Qualcomm MSM8996 (Snapdragon)
  • Storage: EMMC 64GB
  • OS Version: Android 9 (Patch: 2021-05-01)

✅ What You Can Unlock:

  • Pattern Lock
  • PIN Lock
  • Password Lock
  • Screen Lock Without Data Loss

🛠 Required Tools:

  • ✅ UMT QcFire Tool v8.0 or higher
  • ✅ Qualcomm HS-USB QDLoader 9008 driver
  • ✅ Windows PC
  • ✅ USB Cable
  • ✅ QcFire Drivers (installed manually via Device Manager)

📥 Download Links:

🔧 How to Unlock Vivo V9 Pro (Vivo 1851) Without Losing Data:

⚠️ This method resets lock settings only, no data is deleted.

  1. Power off the phone completely.
  2. Boot into EDL mode:
    • Hold Volume Up + Volume Down together and connect USB to PC.
    • The phone should show as Qualcomm HS-USB QDLoader 9008 in Device Manager.
  3. Launch UMT QcFire Tool on your PC.
  4. Go to the “Locks” tab.
  5. Choose “Reset Locks (Vivo)” option.
  6. Click Start.
  7. Wait for the process to complete. You’ll see logs like: yamlCopyEditOperation : Reset Locks (Vivo) Found Port: Qualcomm HS-USB QDLoader 9008 (COMx) Hardware : MSM8996, EMMC, 64 GB Model : vivo 1851 Android Ver. : 9 Patch Level : 2021-05-01 Resetting Locks (Vivo)…Done Please wait for phone to reboot.
  8. The phone will reboot automatically, and the lock screen will be removed without erasing any data.

🛑 Important Notes:

  • Userdata remains intact (no factory reset required).
  • If High Speed Driver is missing, install it from the QcFire > Drivers folder manually via Device Manager.
  • Works on vivo V9 Pro PD1730DF_EX variant with firmware version PD1730DF_EX_A_6.70.11 and similar.

🧩 Common Issues & Fixes:

IssueSolution
Device not detectedCheck driver installation, try another USB port
Boot loop after unlockFlash official firmware using QFIL or QcFire
Encrypted userdataUse UMT Format FS to bypass and reconfigure

📍 Tags:

how to unlock vivo v9 password, vivo v9 pattern lock without data loss, vivo 1851 unlock, umt vivo v9 pro unlock, vivo 1851 screen lock disable tool

🔗 More Unlock Tools & Firmware:

👉 Visit androidhub.co.in for more Vivo flash files, unlock tools, and no-data-loss solutions.

vivo V9 Pro vivo 1851 Unlock
vivo V9 Pro vivo 1851 Unlock

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