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How to check Apple iPhone IMEI for carrier lock, warranty and contract status

When you purchase an Apple iPhone you must validate crucial information related to your phone, there exist quite a few, free online iPhone IMEI checker services allowing users to check there Apple phone's warranty, registration, activation, phone support and contract status as shown below. There also exist free services which allows users to check whether there phones are carrier-locked to At&T Network, USA or not; this comes handy when one wants to get there devices carrier unlocked.
IMEI Checker
AT&T Lock Status Checker
Free online service does a fine job of retrieving otherwise hard to get information related to your Apple device using it's IMEI number.
IMEI Checker
However, the above service wont show you the SIM lock status. Use the status checker posted below to do that, this only checks whether the iPhone is locked to AT&T, USA or not.
At&T, USA Sim Lock Status Checker

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Hey very excellent methods to check the information about our iPhone , but i believe it only shows details for non-jailbreak iPhones. because i tried with one of my jail broken iPhone and it didnt show any details.

No this is not the case, all IMEI's I tested were jailbroken. Also, there is no way anybody can tell this using IMEI.

I agree with the admin.With an IMEI, nobody can ever tell a device is rooted orjailbroken.

There are plenty free services that will provide you such information (Warranty, iPhone model, purchase date, and some other), but they do not provide you information that you need to have in order to unlock your iPhone, or find if it blacklisted or not. From time to time I found some very cheap prices on various iPhone models on eBay, Amazon or Craigslist, but something was not feeling right. I used some of the free iPhone IMEI check services, but they only provided me the usual info. You can either contact Apple (If you know the IMEI number of the iPhone you want to check) and they might be able to help you, or you can use an online IMEI Checker that will give you all the information you want (What network your iPhone is locked to and if it is Blacklisted or not - Lost/Stolen) in a few minutes. Try to find a service that does not have an iPhone unlocking shop, because most of them will try to present your iPhone as locked, so they can sell you an unlocking service. Try to make a good research before purchasing an IMEI Check iPhone service!
Also, that IMEI Check services will not tell you if the iPHone is jailbroken or not, but I do not think that this is very important. If you do not want a jailbroken device, just do a full restore via iTunes, and your iPhone will be back at its original factory settings!

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