Blackview BV6800 pro FRP failed [Answered]

[SPUnlock_SK]

I can't unlock one BF6800

with correct mode setting I always failed like this
INFO : 5/10/2022 5:11:24 PM > Work ID: 0000000001BD169C
INFO : 5/10/2022 5:11:24 PM > Platform: BLACKVIEW
INFO : 5/10/2022 5:11:24 PM > Selected model: BV6800 PRO
WARN : 5/10/2022 5:11:24 PM > Please, power phone OFF and connect USB cable.
INFO : 5/10/2022 5:11:24 PM > Searching for a phone. Please wait...
INFO : 5/10/2022 5:11:29 PM > Found phone on
INFO : 5/10/2022 5:11:29 PM > Detecting Chip Version...
INFO : 5/10/2022 5:11:29 PM > HW Chip: MT6755: 0326.0000
INFO : 5/10/2022 5:11:29 PM > HW Version: 8A00.CB00.0001.0000
INFO : 5/10/2022 5:11:30 PM > HW Chip: MT6750: 00008445
INFO : 5/10/2022 5:11:30 PM > Connecting...
INFO : 5/10/2022 5:11:30 PM > Target Config: 0000
INFO : 5/10/2022 5:11:30 PM > BootLoader Version: FE
WARN : 5/10/2022 5:11:30 PM > Brom Version: 05
INFO : 5/10/2022 5:11:31 PM > BootLoader Version: FE
INFO : 5/10/2022 5:11:31 PM > Searching Download Agent...
INFO : 5/10/2022 5:11:49 PM > Selected DA: MTK_AllInOne_DA_v3.3001.2018-11-07.23:57_458956, n.14
INFO : 5/10/2022 5:11:50 PM > Sending Download Agent...
INFO : 5/10/2022 5:11:52 PM > DA sent successfully
INFO : 5/10/2022 5:11:53 PM > Initializing DA...
INFO : 5/10/2022 5:11:53 PM > Synchronizing with DA...
INFO : 5/10/2022 5:11:53 PM > Mobile Status: SYNC
INFO : 5/10/2022 5:11:53 PM > DA ver: 2099.3.3
INFO : 5/10/2022 5:11:53 PM > Mobile Status: brom
INFO : 5/10/2022 5:11:53 PM > Sending BootLoader Info...
INFO : 5/10/2022 5:11:53 PM > Couldn't find loader!
ERROR : 5/10/2022 5:11:53 PM > Operation was failed!


with custome mode (auth, preloader) logs looks different by finally failed also

Work ID: 0000000001BD2F79
Platform: __GENERAL RESET FRP METHODS
Selected model: MTK CUSTOM
Selected Download Agent: C:\Program Files (x86)\SarasSoft\UFS\UFS_Android\MTK_BOOT\MTK_AllIn Two_DA.bin
Selected Preloader: C:\Program Files (x86)\SarasSoft\UFS\UFS_Android\MTK_PREL\preloader _k50v1_64_cp1861.bin
Please, power phone OFF (press and hold "Vol+" or "Vol-" button) and connect USB cable.
Searching for a phone. Please wait...
Found phone on
Detecting Chip Version...
HW Chip: MT6755: 0326.0000
HW Version: 8A00.CB00.0001.0000
HW Chip: MT6750: 00008445
Connecting...
Target Config: 0000
BootLoader Version: FE
Brom Version: 05
BootLoader Version: FE
Searching Download Agent...
Selected DA: MTK_AllInOne_DA_v3.3001.2017-12-29.16:29_398885, n.14
Sending Download Agent...
DA sent successfully
Initializing DA...
Synchronizing with DA...
Mobile Status: SYNC
DA ver: 2099.3.3
Mobile Status: brom
Sending BootLoader Info...
Initializing Memory Flash..
Initialization successfully completed
Sending loaders...
Mobile Status: SYNC
Reading Flash Info...
EMMC rpmb size: 4 Mb
EMMC boot1 size: 4 Mb
EMMC boot2 size: 4 Mb
EMMC gp1 size: 0 Mb
EMMC gp2 size: 0 Mb
EMMC gp3 size: 0 Mb
EMMC gp4 size: 0 Mb
EMMC user area size: 59000 Mb
eMMC Flash: .88010353.4C443634.4746472C.09607627
eMMC Flash: Foresee: SLD64G
Internal RAM size: 256 Kb
External RAM size: 0 Mb
Reading partition...
Reading info...
Searching for signatures... (here program freezed for several minutes and then fail)
Backup saved as __GENERAL RESET FRP METHODS_MTK CUSTOM_10-05-2022_18-25-24.dump file
Operation was failed!
Performed by 2.1.3.0 Software version.


any idea where is problem?

[Octopus box]

Hello.

Thanks for the feedback, we will check where can be the problem.

[Octopus box]

Hello.

In case you still have phone, please connect the phone without buttons, then perform Reset FRP operation.

Be attentive, Brom version must be FF.