
Updated on December 27, 2017 Alfred Amuno moreAlfred is a long-time teacher and computer enthusiast who works with and troubleshoots a wide range of computing devices. Contact Author The best way to unlock and activate any iPhone is through use of IMEI request. By choosing the IMEI unlock option you are able to get permanent activation and factory unlock for your iPhone. This allows you to use it with any sim card anywhere around the world. IMEI request is the utmost choice and one that will provide the most desirable and fulfilling unlock. IMEI unlock can however be prohibitive for some, viz-a-viz the cost of unlocking iPhones with bad ESN or for other reasons. Thus many users go for cheaper and where possible, free unlock options. One rather popular procedure to unlock and activate the iPhone is done by use of a special sim card interposer known as R-Sim. The R-Sim interposer sits onto a provided tray, and lies just beneath your new sim card. All you have to do is assemble the tray, interposer and sim card into one, and then stick it into the iPhone and follow the clearly written instructions!

What makes r sim unlock somewhat comforting is that you do not have to jailbreak your iPhone. Since jailbreak software are usually released weeks or months after the release of new iPhone Operating Systems (IOS), you do not have to sit and wait for the a jailbreak before you can unlock. In order to unlock using rsim, you need to have purchased the appropriate interposer. Once you have acquired your copy of r sim, all you have to do is insert it with your new sim card into the iPhone. If you have not yet powered up your iPhone do so. If you are not automatically prompted to start the unlock and activation process, just go straight to Phone Settings app, select Phone, and tap on SIM Applications. You will see a page similar to the one below. You will be shown the Select Carrier, Get Carrier Code and Edit IMSI options.
The bottom two are designed for manual manipulation of the unlock and activation. Only opt for these if the first option in Select Carrier fails. Go ahead and choose Select Carrier. You will be redirected to a long list of different carrier networks. Select the carrier that came with your iPhone. You must select a carrier that originally shipped with the iPhone to be unlocked. NOTE: If you do not remember the original sim card for the iPhone in your hands, go find out via a number of tools and websites. The easiest way is to google your model number and the word carrier. About. It reads something similar to this - MD636LL/A. For example, google 'MD636LL/A carrier' and hover through the search results. One of the links on the first page of your search results should somehow indicate the original carrier for the iPhone. After selecting the carrier that came with your iPhone, you will be directed to a new page showing a number of iPhone models, yours inclusive.
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