Unlock Carrier Locked iPhone Without R-SIM! Is That True?

We all know that some iPhones only work with SIM card provided by particular carriers. Usually we unlock the carrier lock with R-SIM. However, we have got news from the Internet that iPhone with the carrier lock could be unlocked without R-SIM. Is that True? Check the video to confirm weather it is possible to unlock iPhone on any SIM card without SIM card sticker.

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