If you want to get the unlocking code for your Samsung i337 Galaxy S4, we recommend you to contact to the original carrier, it is the unique possibility if you want to have your phone unlocked for free. The carrier will provide you with the unlocking code if you are the cell phone plan owner. Our company is dedicated to calculate unlocking codes by IMEI, we work with official unlocking servers and we send the same code as the carrier.
If you buy the unlock code in our company, your will get it, quick and easy, when other SIM cards are inserted, and your Samsung i337 Galaxy S4 asks you for the code; you must fill out the questionnaire and in a few hours you will receive an email with the unlock instructions.
We must indicate that sometimes the unfreeze MCK code is needed (when attempts are wasted, the mobile will prompt the - SIM network PIN blocked. Enter SIM network PUK - ). Other different case, is if you need to use your phone in a different continent, in this case it will be requested the regional code RGCK, you should not worry, our company already knows these cases and always send you the necessary codes for a perfect unlock.
No, once a Samsung is unlocked, it will be never relocked again, so you can update the firmware without any trouble.
The unlocks that we offer allow you to use all the SIM cards such as Optus, Vodafone from Australia and all over the world.
When a i337 Galaxy S4 does not reject your new SIM card but does not allow you to make calls, it is most likely that the IMEI has been blacklisted. You need to contact with the carrier to solve it.
The United States AT&T, Cricket, metroPCS and T-Mobile carriers can lock the i337 Galaxy S4 and do not request the SIM network unlock PIN because they lock the devices through an application called Device Unlock, the app is usually already installed at the factory. You only have to order the unlocking and when server authorize us to unlock it, we will send you an email, just connect the device to WiFi and press Permanent Unlock within the application.
The Samsung i337 Galaxy S4 from Sprint, Verizon, Tracfone, Boost Mobile, StraightTalk or Simple Mobile from United States also do not prompt for the SIM network unlock PIN, these handsets are blocked by the network provider's customized firmware. We also support this block, but is necessary to connect your mobile to the computer and use an unlock software.
1. - Turn on the handset on with a SIM card not accepted by the device (your new network operator)
2. - If the card has a PIN number, enter it and press OK.
3. - The device will prompt: “Network lock”, Now enter the code and press OK.
4. - Your phone will indicate: "The operation was successful", becoming permanently unlocked.
Unfreeze code: If the code in step 3 does not work, type the secondary code and press Unlock, the phone will indicate Unlock fail, now dial the code again from step 3.
Device Unlock app method:
1. - Make sure you have an active data connection via mobile data or Wi-Fi.
2.- From the Application list, tap Device Unlock, the application is pre installed in your device.
3.- Choose the Permanent Unlock.
4.- Restart the device.
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"Muy bueno y confiable y lo mejor rápido, es el mejor sitio para liberar ,desbloquear teléfonos móviles "