I have a Samsung galaxy S4, It was completely paid for but the account they claim is not in good standing. Despite they unlocked my daughters phone after we switched carriers they wont unlock my S4. it is a Samsung SPHL720T (MODEL) IMEI 990004415656788 USA SPRINT COUNTRY AND CARRIER PLEASE HELP , They are a bunch of jerks, I own they phone and they dont care. once I transferred my service to another carrier they wont help me to use the phone I paid for.
Is there a senior member that can help? I thought in a week I might get a reply? please. I thought I POSTED the question with all the data needed. anyone know how to get this phone to work with my new carrier
This is what I found: How to SIM Unlock the Galaxy S4 This method is totally free, but you have to be careful and follow every step without mistakes, because otherwise you might brick your device. So make sure you don’t do anything wrong and that your phone has enough battery so it won’t turn off during the process. This should work for all variants of the Samsung Galaxy S4, including I9500, I9505, I9506, I9505G, I337, M919, I545, L720, R970, I959, I9502, I337M, M919V, R970X, and R970C. Open the phone dialer Dial *#0011# Press Menu Tap Back Press Menu and open the Key input Enter 1 and press OK Press Menu and tap Back Tap [1]UMTS Tap [1]DEBUG SCREEN Tap [6]PHONE CONTROL Tap [6]NETWORK LOCK Tap [3]PERSO SHA256 OFF Press Menu and then Back Tap [6]COMMON Tap [6]NV REBUILD Tap [4]RESTORE BACK UP Now your device will freeze, but don’t worry. Be patient and press Menu when you can, then Back key ON. Your device will now reboot. Now your Samsung Galaxy S4 should be SIM unlocked.
Link to try for alternate method: http://freemobileunlockcodes.com/brands/samsung/samsung-galaxy/unlock-samsung-galaxy-s4-free/