If you want to get the unlocking code for your Samsung S975L Galaxy S4, we recommend you to contact to the original carrier, they can provide you the SIM network unlock PIN totally for FREE, but you must comply these requirements; you must be the original owner and have paid all pending bills. When you have not obtained the unlock code because you do not fulfill the carrier requirements, you can prompt the unlocking on our website.
Don't get complicated, the best way to calculate the unlocking code is our servers, when we introduce SIM cards from other carriers, the mobile phone prompts the SIM network unlock PIN, so you must order it on our website and you will receive perfectly explained unlock instructions in record time.
Please be informed that sometimes the unfreeze MCK code is also needed (when you try to dial the network PIN, Samsung will ask you the - SIM network PIN blocked. Enter SIM network PUK - ) and sometimes it requires the regional code RGCK (just at the moment when you try to use it in another continent). Don't worry, we always provide all the codes.
No, once a Samsung is unlocked, it will be never relocked again, so you can update the firmware without any trouble.
Our unlock allows you to use any SIM from Spectrum, C Spire, AT&T, US Cellular, Cingular, Cricket, Nextel, Sprint, T-Mobile, Verizon, MetroPCS, Tracfone, Boost Mobile, Aio, Net10, StraightTalk, H20 Wireless, Simple Mobile, Virgin Mobile, Family Mobile, Xfinity Mobile, Viaero, Total Wireless, Ultra Mobile from USA and all countries of the world.
Most likely, the device has been reported for non-payment, loss or theft and the IMEI has been blacklisted. Our unlocking does not remove reports and you would have to contact the network provider.
For most new AT&T, Cricket, metroPCS and T-Mobile models in the United States, the unlock method is different, it does not prompt the SIM network unlock PIN and uses the Device Unlock application, this is already in your standard cell. You only purchase the unlocking and when our server approves it, simply access Device Unlock and click on Permanent Unlock.
The most common is that the Samsung from Sprint, Verizon, Tracfone, Boost Mobile, StraightTalk or Simple Mobile from USA do not prompt the 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.
"Technician unlocked my phone in a few minutes"