How to Unlock an iPhone for Use with a Different Carrier in 2021

Many of you may have purchased an iPhone that is locked to only one carrier. This usually happens when you buy the device at a subsidized price and sign a contract for two or three years. So here we leave you a publication that details all the unlocking options you have in this 2020.

Methods to unlock an iPhone for use with a different carrier

Unlocking iPhone via carrier

Many operators are willing to unlock your iPhone if you have already completed the period stipulated in the contract or if you have paid the early termination fee (ETF).

The carrier unlock method is the best of all options as it is permanent, persists even after factory resets, is completely official, and requires no jailbreak or any other tricks. It also works with all iPhone models and all versions of iOS.

Unlock iPhone by IMEI

If you know that you do not qualify for an unlock through your official carrier or that your iPhone is locked with another carrier not mentioned above, you can opt for an IMEI unlock. It works the same as the official carrier unlock, which means it is permanent, it works with all models and versions of the operating system, it persists even after a factory reset, and it does not require a jailbreak or any other hack.

There are many IMEI unlock providers out there, but it’s best to go with trusted providers like Express Unlocks as there are countless scammers out there. The price to unlock the iPhone varies depending on your carrier. They are compatible with all iPhone models, such as iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iPhone 8, iPhone 8 Plus, iPhone 7, iPhone 7 Plus, iPhone 6s, iPhone 6s Plus, iPhone 6, iPhone 6 Plus, iPhone SE, iPhone 5s, iPhone 5C, iPhone 5, iPhone 4S, and iPhone 4.

Unlocking iPhone using Ultrasn0w

Ultrasn0w is a much older unlocking method, which is not very relevant at the moment for multiple reasons.

  • It only works with iPhone 4, iPhone 3GS and iPhone 3G.
  • It requires your device to be jailbroken .
  • Even on supported devices, it requires baseband version 01.59.00, which you probably don’t have.
  • You will lose the unlock if you update or restore your iOS firmware.


SAM or Subscriber Artificial Module is a briefly working method that unlocks your iPhone, however Apple quickly blocked the method so it no longer works.


The best options and the most widely applicable are the first two: an official unlock through the operator or an unlock by IMEI. Both are permanent, do not require jailbreak, and work with all iPhone models and operating system versions.

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