I have given many modems unlocking solutions for various modems and mobile phones, e.g., Huawei, ZTE, Alcatel, Micromax, Airtel, Vodafone, Teracom, Aircel, Idea, Reliance, Tata Docomo, BSNL, Nokia, Samsung, Siemens, Maxon, NEC, Sony, Panasonic, Vitel, AEG / Telital, Alcatel cellphones. We have mentioned in some articles about flash code and in some articles about unlock code. Many users are confused between flash code and unlock code.
Here, we will describe to you in detail about flash code and unlock code. When you download any firmware from the internet and upload it to your modem (Huawei, ZTE, Alcatel, Teracom, Micromax), it asks you the password.
As you can see in the above screenshot, when you will update/downgrade your modem’s firmware, it asks you for a password. Here, you have to use flash code, which you have generated using any unlock code tool. When you provide here flash code, then only you can proceed to the next screen. Here, your modem will be flashed, and it opens the door for unlocking.
Now coming to the unlock code. Some modem only unlocked with the unlock code, but some modem needs to flash it. After the flashing modem, when you insert another than default sim in your modem (another network provider sim), it asks for the password / unlocks code.
In this case, you have to use the unlock code which you have generated using any unlock code generator tool.
