It's an eight-digit code that is linked to your individual SIM card. As it is linked to your SIM card, there is no such thing as a universal Assurance Wireless PUK code. The only time you may actually need your PUK number is if you enter the wrong PIN number three times. In this case, you will only be able to unlock your SIM card and correct Step 4: To change the existing SIM PIN code, go to the SIM card lock settings and select "Change SIM PIN." Step 5: When asked to enter your old SIM PIN, enter the default PIN. Then press OK. Step 6: Enter the New SIM PIN you want to use next. You can select a code length of four to eight digits. When you're finished, press OK. Never try to guess a SIM PIN or PUK code. * The wrong guess can permanently lock your SIM card or eSIM, and then you would need a new SIM card or eSIM. If your device asks for a PIN or code that you don't know, here's what to do: Contact the carrier that gave you the SIM card or eSIM. Having used GSM phones in Europe for many many years, I am very familiar with the eight digit PUK code that is needed to unlock a SIM card when you input the incorrect code three times. When I was on ATT, it was easy to get the PUK code - just login to your account and choose your device and you would see the PUK code listed there. A SIM card is a pseudo-memory card, as it does have some memory inside. However, as you know now, that memory is used for storing a limited number of phone book contacts and SMS messages. The memory on a SIM card cannot be used for saving photos, videos, music, documents, or any other type of file. Go back to your SIM card settings using the steps above. Enter your PUK code. PUK codes are typically 8 digits long. You only get 10 tries before your SIM card is locked permanently, so enter it carefully. Once the PUK code is entered correctly, your SIM card will be unlocked and you will be able to use your voice and cellular data again. It's a 4-digit number that lets you lock your SIM card to one device. By default, your SIM PIN is the last four digits of your PUK. You can change your SIM PIN through your device settings. So, if you've forgotten your SIM PIN, enter a random 4-digit number, like 0000, until you're asked for your PUK code. Android SIM unlock code generator is a software or application that generates unlock codes for Android phones. These codes are used to unlock the phone's SIM card, enabling the phone to work with any carrier's SIM card. The software is designed to be user-friendly and easy to use, with step-by-step instructions to guide you through the process. 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. Digicel Unlock. You can easily unlock your device and use it with any compatible carrier you want. If your device is asking for a SIM network unlock code, we can obtain this code from appropriate mobile device database via our data providers and provide you. If your device does not ask for a code but shows SIM locked or Network Locked message 2Db4u.