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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.

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