Vivo Y91i (1820) erasing FRP Partition is successfully done by Hydar Tool
1. Run Hydra MTK Tool.
2. Choose Brand and Module.
3. Go "Service"-->"Tooll"
4. Choose "Factory Reset Protection FRP" from universal menu..
5. Choose "Format / Erase" from drop down "Method / Option"
6. Click "Execute"
7. Connect cellphone to computer with the help of USB Data Cable.
8. Wait until the operation is completed.
Screen Short:
Logs:
1. Run Hydra MTK Tool.
2. Choose Brand and Module.
3. Go "Service"-->"Tooll"
4. Choose "Factory Reset Protection FRP" from universal menu..
5. Choose "Format / Erase" from drop down "Method / Option"
6. Click "Execute"
7. Connect cellphone to computer with the help of USB Data Cable.
8. Wait until the operation is completed.
Screen Short:
Logs:
BR=====================================
Searching for MTK Device...Found
Port Identification :Flashmode Preloader
FriendlyName :MediaTek PreLoader USB VCOM_V1632 (Android) (COM15)
Device :5&212ac8fc&0&1
SymbolicName :\??\USB#VID_0E8D&PID_2000#5&212ac8fc&0&1#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
Driver Ver :01/22/2015,3.0.1504.0
Handshaking...Ok
Identifying Hardware ID.....
Reading Device hardware info..
hw code : 0766MT6765 [6765]
hw subcode : 8A00
hw version : CA00
sw version : 0000
Target config : 05
SB : 01 (True)
SLA : 00 (False)
DAA : 04 (True)
FUSEID : 00000000
SECURE VERSION : 00
BL VERSION : 03
NORMAL BOOT
Preparing Download Agent..
DA : 6765_SWSEC_9FAA6CBA20.bin
Agent: MTK_DOWNLOAD_AGENT -HYDRA
Ver : MTK_AllInOne_DA_v3.3001.2018/03/20.21:08_402229+403250
Init : Loader [1]
Sending : Accepted
Identifying Protocol...
Protocol : New
Synchronization...SYNC
Mode : preloader
Execute Secondary Loader
Init : Loader [2]
Executing : SYNC
Reading Device UniqueID, RAM and Flash Chip Info...
UNIQUE ID : E4A9830703DAAB3435AF90F9B6009074
ERAM Size : 0x0000000000040000 -256 KB
IRAM Size : 0x0000000020000000 -512 MB
eMMC BOOT1 : 0x0000000000400000 -4 MB
eMMC BOOT2 : 0x0000000000400000 -4 MB
eMMC RPMB : 0x0000000001000000 -16 MB
eMMC USER : 0x0000000747C00000 -29.121 GB
eMMC CID : 150100514436334D4201D38607DC1775 - QD63MB
DA Speed : high-speed
Reading GPT-EMMC [0x00008000] 130 Items
Reading System Info
Brand : vivo
Vendor : vivo
Model : vivo 1820
ID : O11019
SDK : 27
Release : 8.1.0
ABI : arm64-v8a
CPU abilist : arm64-v8a,armeabi-v7a,armeabi
Locale : en-US
Description : full_k62v1_64_bsp-user 8.1.0 O11019 1598442376 release-keys
Device : PD1818HF_EX
Display ID : O11019 release-keys
Security Patch : 2020-08-01
Platform : =MTK6765
Fingerprint : vivo/1820/1820:8.1.0/O11019/1598442376:user/release-keys
StorageType : mtp
Userdata State : Encrypted
Autobackup Partitions
-preloader[0x00000000]512 KB ->preloader.bin...Ok
-> Renaming Preloader.... preloader_k62v1_64_bsp.bin
Creating Scatter file... C:\Hydra Tool\\Backup\Auto\0766_vivo_1820_1820_8.1.0_O11019_1598442376_053121155328\MT6765_Android_scatter.txt
-pgpt[0x00000000]32 KB ->pgpt.bin...Ok
-frp[0x05588000]1024 KB ->frp.bin...Ok
-nvdata[0x07688000]64 MB ->nvdata.bin...Ok
-protect1[0x16A88000]8 MB ->protect1.bin...Ok
-protect2[0x17288000]13.469 MB ->protect2.bin...Ok
-persist[0x18800000]48 MB ->persist.bin...Ok
-nvram[0x25680000]64 MB ->nvram.bin...Ok
Done!!!
C:\Hydra Tool\\Backup\Auto\0766_vivo_1820_1820_8.1.0_O11019_1598442376_053121155328
MTK Phone Loader is NOW RUNNING.
Reading Device UniqueID, RAM and Flash Chip Info...
UNIQUE ID : E4A9830703DAAB3435AF90F9B6009074
ERAM Size : 0x0000000000040000 -256 KB
IRAM Size : 0x0000000020000000 -512 MB
eMMC BOOT1 : 0x0000000000400000 -4 MB
eMMC BOOT2 : 0x0000000000400000 -4 MB
eMMC RPMB : 0x0000000001000000 -16 MB
eMMC USER : 0x0000000747C00000 -29.121 GB
eMMC CID : 150100514436334D4201D38607DC1775 - QD63MB
Reading GPT-EMMC [0x00008000] 130 Items
Reading System Info
Brand : vivo
Vendor : vivo
Model : vivo 1820
ID : O11019
SDK : 27
Release : 8.1.0
ABI : arm64-v8a
CPU abilist : arm64-v8a,armeabi-v7a,armeabi
Locale : en-US
Description : full_k62v1_64_bsp-user 8.1.0 O11019 1598442376 release-keys
Device : PD1818HF_EX
Display ID : O11019 release-keys
Security Patch : 2020-08-01
Platform : =MTK6765
Fingerprint : vivo/1820/1820:8.1.0/O11019/1598442376:user/release-keys
StorageType : mtp
Userdata State : Encrypted
-------------------------------------
Operation : Format/Erase
Processing...
Erasing FRP Partition... Ok
Rebooting Device [Reboot To Normal]
Reboot Done!!
Elapsed Time : 00:00:36
Mount Everest