Video: Doan Hoang.
The ICCID code is a 20-digit number sequence that contains the information of the operator loaded into the sim chip. After that, one can add any phone number to the white sim (un-numbered sim) to use. The network operators use this way to add the subscription number to the white sim for the customer.
The popular ICCID code makes the community happy to use iPhone lock, but this can make the bad guys take advantage to deceive users, the international iPhone version but is actually iPhone lock.
Although this ICCID code can help the iPhone lock to function normally without a SIM pairing, the device will be locked again if the user restores data or Factory Reset (Reset line 2). In addition, if via iTunes to restore, the device will immediately return to its original state.
This is the method to identify iPhone lock and international users can apply to avoid being cheated when buying old iPhone. To restore the original settings, please reset the device to the output status (Reset line 2) by accessing Settings -> select General (> General ) -> select Reset ( Reset ) -> select Erase all content and settings (Clear all data and settings).
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