More Articles How do I get a lock code from AT? There is a PUK code on the back of the SIM card packaging, and if you have just saved it, you do not need to look for other options to get your PUK code. Benefits Of Buying Unlocked Phone there. If you use the software, the device will unlock PUK and you can start using the mobile device again. You can download Unlock Puk Code Generator Software. Free Coreldraw Software Download Full Version. So, as the original papers and the phone rarely arrive in the same location, the phone is not lost or stolen with unlock codes. It is not possible to swap SIM card without PUK code to block, so basically it is necessary to know about the personal lock key for your own sim. Find this on the vendor website or a recent invoice.) You must verify your password before the PUK code has been released for you. 2 Turn on the phone.