Selected model: Vivo PD2139BF (Vivo Y21 (2021))
Operation: Read Flash Info
Software version: 4.9
Host Power Off... OK
Switch virtual port to NONE... OK
Connect Type-C to HUB... OK
Host Power On... OK
Connect phone in PRELOADER Mode
Waiting for device... OK
Driver: [MediaTek Inc.,wdm_usb,MediaTek PreLoader USB VCOM_V1632 (Android),usb2ser.sys,3.0.1504.0]
Device found at COM41 [PRELOADER]
Open port... OK
Send start cmd... OK
Get HW code from device... 0766
Get sec config... OK [00000005]
Active sec flags: [SBC DAA]
Get HW & SW version from device... OK
HW VER: CA00, SW VER: 0000, HW SUB CODE: 8A00
Detect chip [MT6765]
LibUSB installed
Library Version [2]
Select platform... OK
Init BROM... OK
Force Charge... OK
Disable WatchDog Timer... OK
Reopen port for libver2... OK
Preloader exist. Skip connection verification.
Get ME ID... OK
ME_ID = 0xE4710FAB, 0x743C7632, 0xE7BEB2C7, 0xCB56EB5D
Load DownloadAgent... OK
Search DA... OK [2]
Send bootloader... error(DA_INIT_KEY_FAIL)
Advanced Authorization (Preloader) not supported for this preloader version.
