To understand what it means to 'factory unlock iPhone' you need to first understand what a locked phone is to begin with.

Part 4: How to check if your iPhone is already factory unlocked.

Part 3: Factory unlock iPhone 7(Plus)/6s(Plus)/6(Plus)/5s/5c/4 with iPhoneIMEI.

Part 2: Factory unlock iPhone 7(Plus)/6s(Plus)/6(Plus)/5s/5c/4 with DoctorSIM.

Part 1: What is 'Factory Unlock iPhone'.

This will help you make better and more informed decisions. This article will give you a good understanding of what factory unlock iPhone really means, how to factory unlock iPhone 5 or 6 or any other model, and the risks attached to unlocking SIM via jailbreak.

However, someone who isn't very well versed with the practices around the process to factory unlock iPhone should tread carefully, learn what it means to factory unlock iPhones, how to do it in the correct way, and also learn about all the more risky practices surrounding unlocking iPhones. This is why unlocked phones are gaining wider popularity because people find it more convenient as you can save up on international roaming charges, or access any network you like. It can be quite crucial to factory unlock iPhone as it helps you achieve greater network flexibility and accessibility.

New iphone 6 plus factory unlocked