Hard Reset SEWON SGD-106

Turn on the device.
Just type this: *#77218114# or *#881188# or *#94267357# or *#9426*357# *#19912006# *#118811# *#3646633#
Now your phone will reboots.

WARNING !
Hard Reset will erase all of your data
All described operations you are doing at your own risk.

Read about resetting LG G7 ThinQ

Read about resetting BQ BQS-4570 Drive