Solved Gtel Vivo V4 frp and read firmware done.

[gsmdolphin]

Action : Read Firmware.
Selected 0-By CPU:ELBRUS
Exe version: NCKBox AndroidMTK 2.0
Reinsert phone battery.
Battery must be charged.
Phone must be off with battery inside.
Please insert USB cable now...
Detected : MediaTek USB Port (COM92)
Boot mode: Brom
BBCHIP: 6580 0 ca00
Using Algo 1.
Phone detected...Please wait
Sending DA agent, please wait...
[emmi]EMMC CID: 460001154d32584e3a
----------------------------------------------------
BaseBand CPU :MT6580
BaseBand CPU Secure Version : 05
BaseBand CPU Bootloader Version : FE
----------------------------------------------------
INT RAM: 128 KB SDRAM
EXT RAM: 1 GB DRAM
----------------------------------------------------
EMMC: (58Gb+8192Mb) SAMSUNG 0x464e58324d42
EMMC FW VERSION: 01:00:00:00:00:00:00:00
EMMC CID: 150100464E58324D42 : 00000000000000
EMMC UA SIZE: 0x1d2000000
BOOT STYLE: EMMC BOOT
FULL LENGTH: 0x1d2880000 [7.290 GB]
Status: USB_FULL_SPEED
Detecting high speed port, wait......
If driver not installed, install high speed port driver.
If not need high speed port, disable it.
After repeat opperation.
Detected : MediaTek DA USB VCOM (Android) (COM93)
Build Date: Thu Sep 28 20:41:24 CST 2017
Display ID: Vivo4
Build ID: NRD90M
Version: 7.0
FRP partition: /dev/block/platform/mtk-msdc.0/11120000.msdc0/by-name/frp
Mediatek Version Release: SW17W04TL_2202_T5229
Brand: Gtel
Device: Gtel_Vivo4
Manufacturer: Gtel
Model: Gtel Vivo4
IMEI[1]: 35591206
IMEI[2]: 35591206
Dumping Preloader.
Start dumping flash, this can take up to 1 hour.......
Start processing proinfo
Reading: BEGIN: 0x80000 - LEN: 0x300000
Start processing nvram
IMEI[1] from NVRAM: 35591206
IMEI[2] from NVRAM: 35591206
Start processing protect1 ......
Reading: BEGIN: 0x880000 - LEN: 0xa00000
Start processing protect2 ......
Reading: BEGIN: 0x1280000 - LEN: 0xa00000
Start processing lk
Start processing boot
Start processing recovery
Start processing logo ......
Start processing frp ......
Reading: BEGIN: 0x4fa0000 - LEN: 0x100000
Start processing nvdata ......
Reading: BEGIN: 0x50a0000 - LEN: 0x2000000
Start processing secro secro.img
Reading: BEGIN: 0x9a00000 - LEN: 0x600000
Start processing system
Reading: BEGIN: 0xa800000 - LEN: 0xc9800000
Saved to : C:\Users\ADMIN\Documents\Android_MTK\firmware_backup\MT6580_EMMC_NRD90M__7_0_Gtel_Gtel Vivo4_2019_08_17_12_24)
Wait untill phone will start charging.
[0]All done.