They told me to contact the sprint but I'm not sure if they would do it or if I have to pay a fee.

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You require the master subsidy lock code which will allow a cdma device to be reprogrammed that is my understanding. I upgraded to Android 4. It was an ATT locked phone that is now running on Tmobile. I have a Samsung Galaxy s3 for T-Mobile. I changed my sim card about two months ago with another carrier and everything was fine then two days ago my phone started saying " no service " or " not registered on network" I'm not really sure if my phone is locked by T-Mobile or not since it was working with a different sim card for about to months before this happen.

If my phone is locked how can I unlock it if I have the updated 4. Please help! I have the exact same problem. My phone worked perfect for about 2 months and then one day it started acting weird. Didn't think much of it then the next day it said there was an update available. So I updated my phone and ever since I've gotten the "no service" "not registered on network" messages.

I thought it might be my SIM somehow broke so I bought a new one today, activated it and nothing. Still the same messages. I have a galaxy s3 through US Cellular and has no sims card, model sch-ru android version 4. How do I unlock it if there isn't a sim card? Could someone email me the answer please?

Thanks Michelle email: Michelledemers79 gmail. I only have 3 options. I have S3 I OS 4. The fact is when you updated to 4. There is no going back for you and thats a requirement in order for this to work. Jimmy, you have the patience of a saint and I mean that. People need to read not keep asking the same question over and over again! If anyone can successfully flash one of these old baseband and network unlock their phone, I'd be interested in knowing.

I only have one SG3 left and its already unlocked so I don't feel like tampering with it. Please be advised that only 4. Whether you have version earlier or later than 4. In my case, I have a Galaxy note 2 and its firmaware was 4. However, with a walkthrough from YouTube. Eventually, I now use my phone with a different service provider.

In addition, it was possible to upgrade 4. Could it be that US Cellular prohibits for their phones to be unlocked or is it because my service is shut off? Any feedback is appreciated! I am trying to unlock my Samsung. Just to add my Samsung is s 3 and model gt If you are still running 4. You will need a 4. I am not knowledgeable about phones. I have a t mobile galaxy s3 t I followed the directions and downgraded it to 4. I followed the directions above but even with the downgrade it still doesnt give me option 4.

Any suggestions? I need help to unlock my sprint phone I enter the secret code but nothing happens please help me!!!! I need to unlock this phone soon!!!! Then: 1,debug 8,phone control 5,simulation 6,network lock 3,perso sha off. It's possible you may be able to apply this knowledge to unlocking an S3 as well by flashing another baseband but this is not for the faint of heart and may mess something up.

I ended up flashing just the baseband and its all good now.

It should also be noted, that once you perform this.. In event this happens, you must manually enter your Carrier APN settings.. After I unlock it, cant make call, just can text, all the outgoing call switched to another random number. But I can still receiving call.

I just bought an "unlock gs3 mini, but when I put my att sim card, it says network lock. Which it means to me that is not unlock And do not give me an option to write a pin. And this phone is from telcel, which is a company in mexico. If i follow this step, you think is possible to unlock it? I e-mailed the seller but he is not answer me back.

I need to use a south african sim card.. Hi, i need to know if i can use 3G network in Samsung galaxy S3 T from T mobile out of united states, using this code?? Is there anyway to unlock it so I can switch to another carrier or is my best bet just to sell it. It is a Sprint based phone and unfortunately it drops calls or makes calls sound muffled.

Anyone knows why? Hello im trying to unlock my samsung galaxy s3.

Using the With swipe lock option

I have all the steps besidez when do I remove my original sim card from my phone? Hello everyone I'm new to this so bear with me plz but I have a new problem I haven't seen anyone ask yet I got an s3 from a friend and I put my SIM in it and it will let me make calls but not receive them and I can recieve texts but not send them and if I get a vmail it won't let me call to check it does anyone what's up with that one plz help thx.

The phone is verizon version 4. Don't know if anyone can help me, but here it is: I have the version 4.

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4. SOLVED: I forgot my phone's password. - Samsung GT-CK champ - iFixit.

Method 2 of A screen will appear showing the code. Make note of this number for later use. Make sure to write the code down, because it cannot be copied to your phone's clipboard.



However is not recommended to take it from the box or underneath the phone's battery as it might be different and your unlock code will not work. Find a paid unlock service. There are multiple sites online that offer to unlock your phone for a fee. Read reviews and make sure that other customers have been satisfied with the service. You will need to provide your phone's IMEI number. Order a code.