Step 1:-Insert your Idea NetSetter 3G device (with the original Idea sim card it came bundled with) in the USB port of your computer and install the Idea NetSetter software. This is to ensure that all the necessary device drivers are installed. You can skip this step if you already have the software installed.
Step 2:-Run the setup file of the E155XUpdate_11.608.13.02.00.B418 Software and follow the on-screen instructions. If the device is not found by the application, make sure to exit the Idea Software or any other application that may be using the Idea USB device and try again. You will require the flash code for continuing with the process. Use the Huawei Unlocker software and key in the IMEI number of the Idea Netsetter (Remove the sim card to see the IMEI number). The application will generate two numbers Flash and Nck. Flash code is the one that you will need in this step. Also, note down the Nck code, you might require this in the last step.
How to Unlock Idea NetSetter 3G Huawei E1550 {Part-2} :-