Unlock-Instruction for Samsung Galaxy S4 SGH M919 from T-Mobile USA

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Video about unlocking Samsung Galaxy S4 SGH M919 from T-Mobile USA, by entering the unlock code. After sequentially entering these codes, the phone was unlocked!
Unlock is carried out once, after unlock your device will accept any SIM-cards and will be updated without any problems to the latest versions. The phone after unlocking will not be blocked again.
To unlock Samsung Galaxy S4, depending on the country or type of lock, please follow the links: