DTPro MT6781 Dump preloader Success!!! (Beta rev4 Understest)

[DTPRO Tool]

17/05/2022 7:51:41 p. m. - Connecting to server:
17/05/2022 7:51:41 p. m. - Installing LibUsb Drivers..
17/05/2022 7:51:42 p. m. - Creating Device Service.. [LibUsb]
17/05/2022 7:51:42 p. m. - Info : Connect phone to USB in BROM mode
17/05/2022 7:51:42 p. m. - BROM Mode : Please, power phone OFF, press and hold "Vol" button and connect USB cable.
17/05/2022 7:51:42 p. m. - Searching for a phone. Please wait...
17/05/2022 7:52:08 p. m. - BROM Port Found : Dispositivo serie USB (COM4)
17/05/2022 7:52:08 p. m. - Driver Description : Microsoft, ,6-21-2006,10.0.19041.1202
17/05/2022 7:52:09 p. m. - Checking Comunication Channels..
17/05/2022 7:52:09 p. m. - Device INIT Handshake.. Okay
17/05/2022 7:52:11 p. m. - Get HW code from device : 1066
17/05/2022 7:52:11 p. m. - Get HW & SW version from device... OK
17/05/2022 7:52:11 p. m. - HW Subcode : 8A00, HW Version : CA00, SW Version : 0000, HW Config : 000000E7
17/05/2022 7:52:11 p. m. - Secure Boot Device : True
17/05/2022 7:52:11 p. m. - SL Authorization : True
17/05/2022 7:52:11 p. m. - DA Authorization : True
17/05/2022 7:52:11 p. m. - Chipset : MT6781
17/05/2022 7:52:11 p. m. - Opening Device Drivers Interface..
17/05/2022 7:52:11 p. m. - Reading Preloader Data..
17/05/2022 7:52:14 p. m. - Response : 0xC1C2C3C4 - 299516
17/05/2022 7:52:14 p. m. - Saving Preloader File to :C:\Users\STI.user\Downloads\Mediatek_v4.0.0.000028EXT_rev4\Backup\_Preloader_195214717_170522.bin
17/05/2022 7:52:17 p. m. - Advanced Security Authorization... OK