Kingstar A20 Pattern Lock Hard Reset & hang Solution

No need of full flashing

i m posting here shortest solution for A20 hard reset/pattern Unlock
or wiping
keep flash file folder any whre you wish
Broadcom driver must be installed
I had placed flash file pack in c: drive rename folder as "a20 file"

Go to start > run > cmd
Now type following>>>>


C:\>cd a20file
C:\a20 file>dfu
now press Enter

Window will pop up saying plug in device

now plug in handset without battery or with battery keeping in mind port "Broadcom usb to serial" is formed , keep device manager opened

within a minute set is reset
wiping all user maintained data ,security or pattern lock

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