Because if you enter in non 3g area then your data card will active with 2g signals also. Such as, if you’re using Reliance data card, you can not access any CDMA network, but by unlock cdma data card you canaccess any CDMA network.Ģ. Unlock USB modem will allow you switch any network provider. Some advantages of unlock broadband modems are:ġ. An unlock data card will also permit you to use 3G modems globally. The NCK code is suitable only with Vodafone, ZTE and Huawei products. For using any network or SIM card, you have to enter the unlock code ‘NCK’ once. If you have an unlock data card, you can switch any network. On the other hand, unlock USB broadband modem is available to all service provider not stick to one network provider. For instance, if you’re currently using MTNL SIM a particular dongle, you can use only the services of MTNL. Lock data cards are those that will permit you to access only one Internet service provider (ISP). Are you looking for a broadband modem that will allow you to access Internet on the go? So there will be two types of broadband – Lock and unlock.
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