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How to unlock samsung galaxy s3 password / pin / pattern with dr.fone dr.fone - unlock (android) is a state-of-the-art unlock program designed to simply and safely remove lock screen passwords / pins / patterns and fingerprints from android phones.. The samsung galaxy s3 mini is designed to be unlocked by code, this is why it displays the sim network unlock pin or similar code entry prompt when you try to use an alternative network sim card. also, unlocking by code is the only method of unlocking that will not void the warranty of your samsung galaxy s3 mini.. Sim network unlock pin samsung galaxy tab s3 9.7 if a message ( sim network unlock pin ) appears on the lcd of your samsung galaxy tab s3 9.7, it means that the device is blocked. you cannot use any other network, until you enter the correct unlock code..
