como dice el titulo comenzamos

abrir el modulo MTK NCKBox AndroidMTK 3.0.3

en settings dejar todo en Auto
ir a Simlock Unlock
elegir Flash mode
Conectar con la tableta apagada presionando Vol + y Vol -

aqui el log de la operacion

Exe version: NCKBox AndroidMTK 3.0.3
Selected model: 0-By CPU AUTO
Action: Unlock
Phone must be off with battery inside.
Battery must be charged
Please insert USB cable now...
Keep "VOL-" button untill inserting USB cable.
For some phones need to keep "VOL+ and VOL-" button untill inserting USB cable.
For some phones need to keep "VOL+" button untill inserting USB cable.
Detected(6) : MediaTek USB Port_V1632 (COM6)
[6] \\?\usb#vid_0e8d&pid_0003#5&2f2f3b60&0&3#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
CPU: MT6761 CPU code: 717 Target config: 0
***********************
Secure boot enabled: false
Need serial link authorization: false
Need download agent authorization: false
SWJTAG enabled: false
EPP_PARAM at 0x600 after EMMC_BOOT/SDMMC_BOOT: false
Root cert required: false
Memory read authorization: false
Memory write authorization: false
Cmd 0xC8 blocked: false
***********************
Executing exploit, do not disconnect phone
Exploit has been executed successfully.
[35a00]Dumping phone preloader.
Preloader: C:\ProgramData\Android_MTK_Backup_Folder\preloader_backup\preloader_tb8766p1_64_bsp.bin
Waiting for handle to become active......
Reseived active handle repply from phone......
Booting phone
Detected(6) : MediaTek USB Port_V1632 (COM6)
[6] \\?\usb#vid_0e8d&pid_0003#5&2f2f3b60&0&3#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
Boot mode: Brom
Phone detected...Please wait
BBCHIP: 6761 200 ca01
Using Algo 1.
Helio MT6761 phone detected, swithing to helio api
Helio enabled DRAM in First Da: FALSE
Sending loader.....
BBCHIP MT6761
[1]Storage EMMC
Block size: 512
EMMC FW VERSION: 00:00:00:00:00:00:00:00
EMMC CID: 15010052433134 : 000000000000000000
EMMC UA SIZE: 0xe8f800000
BOOT STYLE: EMMC BOOT
FULL LENGTH: 0xe90400000 [58.254 GB]
Status: USB_HIGH_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(57) : MediaTek DA USB VCOM (Android) (COM57)
[57] \\?\usb#vid_0e8d&pid_2001#5&2f2f3b60&0&3#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
IMEI[1]: 35007
IMEI[2]: 53467
[Helio]Reading security, wait...
[32]SIM 1
Block1(N): Unlocked
Block2(NS): Unlocked
Block3(SP): Locked (remain:5)
Block4©: Unlocked
[32]SIM 2
Block1(N): Unlocked
Block2(NS): Unlocked
Block3(SP): Locked (remain:5)
Block4©: Unlocked
Unlocking phone, wait.
[1]Unlocking
[2]Unlocking
Write done
[helio]Wait untill phone will start charging.
[0]All done.

cualquier duda contactenme

saludos y espero que les sirva mi aporte

amigo esa tableta queda funcionando como telefono o solo para datos

Colega solo para datos pero funcionan los codigos USSD.... En Cuba solo 2G...

Aporte:
Si no les jala en flash mode ponerlo en meta Mode y elegir el modelo del procesador mt6761

Ambos volúmenes y liberación exitosa

Con furious igual sale selecciona Vortex MUV y listo presiona volumen menos y a cobrar