Vivo U20 PD1941F unlock umt using testpoint

Operation : Reset Locks (Vivo)
Checking for existing devices…Found
Port : Qualcomm HS-USB QDLoader 9008 (COM3)
Driver Info : Qualcomm Incorporated, qcusbser.sys, 2.1.2.7
Opening Port…OK
Init Handshake Sequence…OK
Hardware ID : E1500900 [SM6150] 03007300
OPK_DATA : F754F13EE91BF54295CA1FBD64D182067440B35FC41B798A539670EA259771BA
Initializing Protocol…OK
Using Auto Loader Selection [1]
Preparing Loader…Done
Sending Loader [SM6150_001]…Done
Executing Loader…OK
Detecting Storage Type…OK
Hardware : SM6150, UFS, 64 GB
LU Count : 6 [0x00E9E800] [0x00000800] [0x00000800] [0x00002000] [0x00040000] [0x00004000]
WARNING! High Speed Driver is not installed.
Please install driver from QcFire\Drivers folder using Device Manager.
Payload Info : In: 262144 [65536], Out: 16384, Sector Size: 4096
Reading Partition Table…OK
Reading Device Information…OK
Device : vivo vivo 1921 [PD1941F_EX]
Brand : vivo
Prod.Name : PD1941F_EX
Software : PKQ1.190302.001 release-keys, compiler02101010 [Fri Feb 10 10:09:54 CST 2023]
Android Ver. : 9
Patch Level : 2021-09-01
USERDATA : Encrypted
Reading Extended Information…OK
Model : vivo 1921
Product : PD1941F_EX
Cust. Name : PD1941F_EX_IN_NULL_NULL
Version : PD1941F_EX_A_1.70.17
Resetting Locks (Vivo)…Done
Please wait for phone to reboot.
Operation Finished.
QcFire Ver. 9.2

Vivo U20 Specifications:

⚠ Important Notes

• This process removes screen lock / pattern / PIN.
• FRP status depends on firmware security.
• Data may be wiped.
• Always backup before any operation (if possible).
• Use proper ESD precautions while opening device.

📋 Vivo U20 Specifications Overview

Display

• 6.53-inch IPS LCD
• 1080 × 2340 pixels (Full HD+)

Processor

• Qualcomm Snapdragon 675 (11nm)

RAM & Storage

• 4GB / 6GB RAM
• 64GB internal storage
• microSD support

Camera

Rear Triple:

• 16MP (Wide)
• 8MP (Ultra-wide)
• 2MP (Depth)

Front:

• 16MP Selfie

Battery

• 5000mAh
• 18W Fast Charging

OS

• Android 9 Pie
• Funtouch OS 9.2

Colors

• Racing Black
• Blaze Blue

Release: November 2019

🔧 Common Vivo U20 Software Problems & Fixes

1. Performance Lag

• Clear cache
• Remove unused apps
• Factory reset if needed

2. App Crashes

• Update apps
• Clear app data
• Reinstall problematic apps

3. Battery Drain

• Disable background apps
• Check battery usage stats
• Update firmware

4. Network Issues

• Reset network settings
• Reinsert SIM
• Update baseband

5. Overheating

• Avoid heavy gaming
• Update system
• Check charging adapter