If you want to get the unlocking code for your Samsung C3520, we recommend you to contact to the original carrier, it is the only way to acquire the unlock code (network PIN) completely for free, you must end the contract and you must be the device 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 C3520 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.
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, the unlocks we provide will never be removed, and you can update and restore the Samsung whenever you need it, without fear of losing the unlocking.
Unlocking method is for any SIM card of Three, O2, Tesco Mobile, Vodafone, EE, BT Mobile from United Kingdom and any other country.
When a C3520 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 C3520 and do not request the SIM network unlock PIN because they lock the devices through an application called Device Unlock, 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.
Normally a Samsung from Sprint, Verizon, Tracfone, Boost Mobile, StraightTalk or Simple Mobile from United States does not request the network unlock code, these smartphones are blocked by the carrier customized firmware. We can remove the network restriction for these cells, but it must be unlocked through software and sometimes with remote help from one of our technicians.
TUTORIAL VIDEO
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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