Before Vivo Y91_1811 Userlock Frp Remove, Make Sure The Following Steps Are Performed:

Install QcomMtk_Driver_Setup Lasted

LINK – DOWNLOAD

How To Connect Qualcomm 9008 EDL Mode?

1.Qualcomm Old Model > Power Off / Vol+ Vol- USB Connect

2.The Vivo Y91_1811 is a Qualcomm unit.Therefore, it is necessary to cover the back and support 9008 Test Point.

[Read/Reset/Reset&Backup/Restore Screenlocks]
1.Reading the help, Enter Qualcomm EDL/9008 mode, Connect USB Cable (install drivers)
2.Go to Screenlock Tab, Click buttons
TIPS: These function working for android unencrypted devices.
TIPS: Read screenlocks function not working for Android 6.0 and above version

[Factory Reset without data loss]
1.Reading the help, Enter Qualcomm EDL/9008 mode, Connect USB Cable (install drivers)
2.Go to Screenlock Tab, Click “Factory Reset without data loss” button

[Read Userdata]
1.Reading the help, Enter Qualcomm EDL/9008 mode, Connect USB Cable (install drivers)
2.Go to Userdata Tab, Click “Read Userdata” button
TIPS: These function working for android unencrypted devices.

[Read Partition/Write Partition/Erase Partition]
1.Reading the help, Enter Qualcomm EDL/9008 mode, Connect USB Cable (install drivers)
2.Go to Partition Tab, Click Read GPT
3.Go to Partition Tab, Click buttons
TIPS: If the partition is encrypted, the mirror files also encrypted

Operation: Factory Reset
Selected Model: PD1818
Platform: QUALCOMM

Waiting for EDL connect: OK
Port: COM7
Connect to device … OK
Sending loader … OK
Connecting to Sahara … OK
Reading configuration … EMMC/512
Factory Reset …
Looking target partition: … OK
Checking payment interface …
Connecting to server … OK
Checking need payment … NO
Writing data … OK

Operation: Finished

Operation: Reset FRP
Selected Model: PD1818
Platform: QUALCOMM

Waiting for EDL connect: OK
Port: COM7
Connect to device … OK
Sending loader … OK
Connecting to Sahara … OK
Reading configuration … EMMC/512
Reset FRP …
Looking target partition: … OK
Checking payment interface …
Connecting to server … OK
Checking need payment … NO
Writing data … OK

Operation: Finished

Download EMT Tool Lasted Version

LINK – DOWNLOAD

ViVivo Y91_1811_OPM1.171019.026 release-keys_2019-06-01 Fimrmware

LINK – DOWNLOAD

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