How to unlock Idea Huawei E303Ds-1?
1. Download the firmware and Huawei modem unlocker software from the link which is provided at of the article.
2. Connect the dongle to PC and close the Idea-branded software.
3. Run the “Universal Master Calculator” software and put your IMEI in Huawei tab and generate the flash code.
4. Note down the flash code and now run firmware 21.157.13.00.910 which you have downloaded.
5. Accept terms and conditions and proceed to the next step.
6. Now it will ask you for password.
7. Use the flash code which you have generated for your IMEI and proceed to the next step.
8. After a few minutes your modem will be flashed with new firmware.
9. Now put another company SIM in your modem.
10. Connect to PC.
11. It should open the dashboard and ask you for unlock code. You can also use “Unlocking Tool”.
12. Enter the code and it will be unlocked forever.
You can download Idea Netsetter E303D Huawei modem original firmware E303DUpdate21.157.71.02.356 to repair the damaged modem.
Update: This solution does not work with Idea E303.