Universal modems are a better option, but they come at a higher price, and it would be cheaper to sort for a modem in a specific network provider's shop and then unlock it yourself so that it can use other SIM cards. This means that if you are using a Huawei modem optimized to be used for Verizon networks, you cannot use this modem with AT&T SIM cards or any other SIM card from another network service provider apart from Verizon unless it's unlocked. Too many times, premium modems are locked to a primitive network.
We have come up with a wide range of Huawei unlocker applications that would be of great use to you. If you are suffering from the same issue, then don't worry. For instance, you can only use your device with a respective network, restricting its overall utility. When it comes to utilizing your Huawei modem to its true potential, there can be plenty of pitfalls.
