With all Samsung Galaxy S4 Unlocking Code orders we usually deliver a complete set of unlocking codes. Most of the time you just need the Network Code (NCK) but when needed you'll also receive Unfreeze Code, Reset Key, or Service Provide Code. In the same email that includes your unlock code(s), you will also receive complete instructions on how to use it. Usually, you just insert the SIM card in the phone you want to use and the phone will prompt you for the unlock code. In case you need any assistance, our customer support is always there to answer any questions you might have. We will get back to you within less than 12 Hours from Monday to Friday.
NOTE: Make sure that Samsung Galaxy S4 PROMPTS for the code with a NON accepted sim card and that your IMEI is correct by dialing *#06#
WARNING: IF YOU SEE TWO LINES WITH A "NOT_CHANGE" AND A  IN THE LINE THIS DID NOT WORK TO FIX THIS PLEASE FOLLOW BELOW:
11. IMMEDIATELY ON THAT PAGE WITH THE ENABLED_FLAG, restart Samsung Galaxy S4 on the screen by holding the power button and click RESTART.
12. When Samsung Galaxy S4 prompts for the unlock code simply enter the unlock code provided to you.
13. Your Samsung Galaxy S4 is now permanently unlocked!
Any suggestion? Want to help us improve our Guideline to unlock Samsung Galaxy S4 ? or those are not accurate ? Please contact us
All products, and company names, logos, and service marks (collectively the "Trademarks") displayed are registered® and/or unregistered trademarks™ of their respective owners. The Unlock Arena is not associated with or sponsored by Samsung. The authors of this web site are not sponsored by or affiliated with any of the third-party trade mark or third-party registered trade mark owners, and make no representations about them, their owners, their products or services.