It’s usually 90 days (3 months) after activation that they allow you to unlock your phone through them if you are still in a contract (postpaid). Like T-Mobile, almost all carriers around the world (except those from European countries) tie up your phone’s unlock eligibility on a specific number of months that you have used up their service. If you are using a T-Mobile phone, they will even allow you to have your phone temporarily unlocked (for travel, etc) depending on your eligibility. Unlocking a mobile device is fully legalized in the US. Some CDMA phones have sim slots to be simultaneously used on the 4G LTE towers of carriers like Sprint or Verizon, but it doesn’t necessarily mean this phone can work on a carrier with a GSM network that uses sim cards to work. You can’t use a GSM phone on a CDMA network, and likewise, a CDMA phone can’t be use on a GSM network.ĭo not confuse yourself on a CDMA phone with a sim card slot. Verizon and Sprint uses CDMA technology, while AT&T and T-Mobile use GSM technology for their networks. Take note that even if you find your phone model on their website, phones/mobile devices purchased from T-Mobile has specific version numbers- that means some of your phone’s functionality/features may or may not work fully on the network you want to switch to. Make sure the mobile phone you wish to use with another carrier is compatible with their network. Let’s explore how you can unlock your mobile device through the guidelines we will discuss below. So, if you plan to switch carriers using the same mobile device you need to get a SIM Unlock code.Īnd just like most carriers, T-Mobile also programmed their mobile phones this way.
Most of the mobile carriers nowadays have pre-installed programs or softwares that prohibits mobile devices to be used on another carrier.
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Locked and unlocked phone difference (1)Ī Complete Guide On How To SIM Unlock A T-Mobile Android Phone (w/ Infographics) IMEI Unlock, T-Mobile, Unlock Phoneĭo you want to use your mobile phone abroad or do you want to unlock your mobile device for use on other carriers? If you bought your mobile device from T-Mobile or if you are currently using a T-Mobile-enabled phone, we’ve prepared a complete guide to SIM unlock your phone on a legal and easy way.