security not repair problem

need cdc serial drivers for gionee v4s for win 7..its mtk 6582 based phone

find drivers all over the forum and google but cant find any solution.:(
try to repair security hare is log

Operation : Repair Security [ v1.40 ]

1. Power Off Phone , Remove battery , Insert back
2. Insert USB cable. In some cases require hold BootKey

Wait for phone…
Phone found! [ 7 ]
Device boot not done
Check Drivers
Try again

Init Service mode failed, something went wrong 🙁

Reconnect Power/Cable!