symphony i25 frp remove done with Selected model: I20 
Platform: SYMPHONY
Selected model: I20
Please, power phone OFF and connect USB cable.
Searching for a phone. Please wait...
Found phone on COM27
Detecting Chip Version...
HW Chip: MT6580: 6580.0000
HW Version: 8A00.CA00.0000.0000
Connecting...
Brom Version: FF
BootLoader Version: 01
Searching Download Agent...
Selected DA: MTK_AllInOne_DA_v3.3001.2018-11-07.23:57_458956, n.11
Sending Download Agent...
DA sent successfully
Initializing DA...
Synchronizing with DA...
NAND Flash: not installed
eMMC Flash: .15010046.4531324D.4207F6D3.B8ECC363
eMMC Flash: Samsung: FE12MB
DA ver: 4.2.9C
Initializing Memory Flash..
Initialization successfully completed
Sending loaders...
Loader send successfuly.
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: 14910 Mb
Internal RAM size: 128 Kb
External RAM size: 1024 Mb
Reading partition...
Reading info...
Brand: Symphony
Model: i25
Device: Symphonyi25
Platform: mt6580
Android version: 6.0
Display ID: i25
Searching for signatures...
Resetting FRP lock..
FRP lock is successfully reseted!
Backup saved as SYMPHONY_I20_03-01-2019_18-52-36.dump file
Performed by 1.5.6.0 Software version.
Thanks Octopus team