Here is Stock Firmware for CUBOT C9W 4.0 Inch MTK6572W Dual Core Smartphone:
2.Download tool: Flash tool
Pls note, before you flash the phone you need to install the drivers on your pc.
1. Open the exe tool as pic shows:
2.A new windows will be on you pc screen as below. click the”scatter loading ”
Loading the txt file as below pic shows:
Double check options Make sure that “USB Mode ”and “DA Download All ” have been ticked .
Step 3: Click the “Download ”and turn off your Smartphone .Then connect your C11 with your PC through the USB cable .
What you should do is just to wait and stare at the progress bar until it’s completed .
When the task is completed ,you will see “Download OK ”.The progress is very simple and easy to operate if you do as the drections .