Every time a new SIM card, either prepaid or postpaid, is issued, the PIN and PUK codes are printed on its packaging. For an E-SIM, these codes are also provided, usually sent via email or mailed ...

A PUK code is required if a GSM SIM card was locked after entering the wrong PIN code three times in a row. Entering a wrong PUK code ten times in a row disables the SIM card permanently.

[Jason Gin] wanted to reuse the SIM card that came with a ZTE WF721 wireless ... backwards and determine the unlock command and its PIN code. It turns out the PIN was even being sent over the ...

The only thing that changes is your PIN and PUK numbers, while RICA details will be transferred to the new card. Discover how to do a Telkom SIM swap at ... private number code for MTN.