First of all, use read back to get rom dump (backup) as there is no stock rom available on net.
the guide.
Procedure:
1. Download and install drivers
Driver_Auto_Installer_v1.1236.00.7z.
If not working try these too
PDAnet_4150.rar.
Problem in installation?? Go
here
2. Download and copy/move
SuperUser to your memory card.
3. Download any kitkat recovery from
here and place it in pc.
4. Open
SP Flash tools and load this
MT6582_Android_scatter.txt in it. (
alternative download link of sp flash tools)
5. Click on 'recovery' in sp flash tools and select the downloaded Recovery .
6. Click Download in sp flash tools, remove the battery from phone and connect it to pc.
A green circle/download ok will confirm flashing.
7. Insert battery and press volume up+down+power on, then press volume up to select recovery.
Note: in ctr recovery you can swipe right to go forward and swipe back to go backward, use it to navigate, save volume buttons.
8. Tap on install from sd card and swipe right on screen to go forward, select "superuser.zip" and say yes to flash.
9. Reboot, Done.
In case any one wants working MTK droid tools,
here or
here
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