symphony v98 frp remove done with Platform: __GENERAL RESET FRP METHODS Selected model: SC7731E SIGN V2 
Platform: __GENERAL RESET FRP METHODS
Selected model: SC7731E SIGN V2
Please, reconnect battery, press and hold "Vol+" or "Vol-" button and connect USB cable.
Searching for a phone. Please wait...
Found phone on COM101
Connecting...
Mobile Status: SPRD3
Sending preloader...
Mobile Status: Spreadtrum Boot Block version 1.1
Sending mainloader...
Reading info...
Brand: Symphony
Model: V98
Device: V98
Android version: 8.1.0
Custom build version: V98_HW1_V8
Internal build version: K121AG_8.1_SYM_BD_GMS_07
Display ID: OPM2.171019.012 release-keys
Searching for signatures...
Resetting FRP lock..
FRP lock is successfully reseted!
Backup saved as __GENERAL RESET FRP METHODS_SC7731E SIGN V2_27-01-2019_15-37-49.dump file
Performed by 1.6.0.0 Software version.
Thanks Octopus team