Vivo Y91c 1820 Password and FRP Done via NCKDongle
-Open NckDongle_AndroidMTK_Setup_v2.5.9.9
-Phone Setting
Vivo
Y91C or Y83
-FRP-PATTERN-PRIVACY
-Click [META] Reset To Factory Default
-Bootkey VoL Down
-Connect USB Cable
FRP
-Phone Setting
Vivo
Y91C
-FRP-PATTERN-PRIVACY
-Mode
Erase FRP
-Click Reset FRP
-Bootkey VoL Down
-Connect USB Cable
Exe version: NCKDongle AndroidMTK 2.5.9.9
Selected model: Vivo Y91C
[erase]Action: Reset FRP
Reinsert phone battery.
Battery must be charged.
Keep VOL+ button untill inserting USB cable.
Detected : MediaTek PreLoader USB VCOM (Android) (COM29)
Boot mode: Preloader
Phone detected...Please wait
BBCHIP: 6765 0 ca00
Using Algo 5.
Helio MT6765 phone detected, swithing to helio api
Loading Custom Preloader
Helio enabled DRAM in First Da: TRUE
BBCHIP MT6765
[1]Storage EMMC
EMMC FW VERSION: 00:00:00:00:00:00:00:00
EMMC CID: 15010051443633 : 000000000000000000
EMMC UA SIZE: 0x747c00000
BOOT STYLE: EMMC BOOT
FULL LENGTH: 0x749400000 [29.145 GB]
Phone have OTP partition.
Starting helio frp, not disconnect phone untill done
[HELIO]Format partition, please wait...
[0]FRP Reset Done.
[helio]Wait untill phone will start charging.
[0]All done.
-Open NckDongle_AndroidMTK_Setup_v2.5.9.9
-Phone Setting
Vivo
Y91C or Y83
-FRP-PATTERN-PRIVACY
-Click [META] Reset To Factory Default
-Bootkey VoL Down
-Connect USB Cable
FRP
-Phone Setting
Vivo
Y91C
-FRP-PATTERN-PRIVACY
-Mode
Erase FRP
-Click Reset FRP
-Bootkey VoL Down
-Connect USB Cable
Selected model: Vivo Y91C
[erase]Action: Reset FRP
Reinsert phone battery.
Battery must be charged.
Keep VOL+ button untill inserting USB cable.
Detected : MediaTek PreLoader USB VCOM (Android) (COM29)
Boot mode: Preloader
Phone detected...Please wait
BBCHIP: 6765 0 ca00
Using Algo 5.
Helio MT6765 phone detected, swithing to helio api
Loading Custom Preloader
Helio enabled DRAM in First Da: TRUE
BBCHIP MT6765
[1]Storage EMMC
EMMC FW VERSION: 00:00:00:00:00:00:00:00
EMMC CID: 15010051443633 : 000000000000000000
EMMC UA SIZE: 0x747c00000
BOOT STYLE: EMMC BOOT
FULL LENGTH: 0x749400000 [29.145 GB]
Phone have OTP partition.
Starting helio frp, not disconnect phone untill done
[HELIO]Format partition, please wait...
[0]FRP Reset Done.
[helio]Wait untill phone will start charging.
[0]All done.
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