I have a Samsung SGH-i437 that was a contract phone from AT&T. I wanted to unlock it for use over seas, so I rooted the phone and installed CyanogenMod cm-10.2-20130925-UNOFFICIAL-expressatt but the phone still has a carrier lock on it. I now have a unlock code but can not get the prompt by using #7465625*638*CODE# because it give me a no network message. When I insert a different sim it does not recognize it. It only has the icon for the sim with a ? make on it.
Any help would be appreciated!
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Hi,
I recently purchased a unlock code from unlockadic for my vibrant but when I went to use it it said Network lock request unsuccessful. Does anyone have any ideas?
If this is in the wrong section I apologize
P.S. I did contact unlockadic and said that this has never happened and that he would have to have his guys look at the problem.
bump because i had the same issue.
you need a non-t-mob sim in the phone for the unlock to activate
I have an account with Rogers & that is the SIM l put in the phone-result was unsuccessful. Code is correct unlock code-i got the same code from three different sources but no luck.
hussarfilms said:
you need a non-t-mob sim in the phone for the unlock to activate
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hussafilms is correct.
You need to put in a sim from a network that the phone was not designed for. So if you bought the phone from tmobile then put in a att sim or if you bought it from another company put in a sim that is not from that company. So if you have the galaxy s from rogers then put in a tmobile sim or something.
Let me clarify, I bought a Samsung t959 Vibrant from ebay locked to t mobile and I put in my Rogers SIM card, entered the code and it was unsucessful
How many times did you try to enter the unlock code? I beleive if you have three failed attempts, it will be permanatly locked.
I called ATT and gave me my unlock code for my Motorola Atrix. I used a Tmobile sim card, entered the code. And it said Network unlocked successful. So do I need to enter the code every time I use a non-ATT sim or it is unlocked forever?
And if I do an update, would it still be unlocked, or would I need to re-enter the code.
Thanks.
It is permanently unlocked.
Your good to go
I have a Samsung SGH-i437 that was a contract phone from AT&T. I wanted to unlock it for use over seas, so I rooted the phone and installed CyanogenMod cm-10.2-20130925-UNOFFICIAL-expressatt but the phone still has a carrier lock on it. I now have a unlock code but can not get the prompt by using #7465625*638*CODE# because it give me a no network message. When I insert a different sim it does not recognize it. It only has the icon for the sim with a ? make on it.
Any help would be appreciated!
4 days and no help!
mch7780 said:
I have a Samsung SGH-i437 that was a contract phone from AT&T. I wanted to unlock it for use over seas, so I rooted the phone and installed CyanogenMod cm-10.2-20130925-UNOFFICIAL-expressatt but the phone still has a carrier lock on it. I now have a unlock code but can not get the prompt by using #7465625*638*CODE# because it give me a no network message. When I insert a different sim it does not recognize it. It only has the icon for the sim with a ? make on it.
Any help would be appreciated!
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Click to collapse
Starting to think signing up was point less. It has been 4 days with no reply's!
Got an unlock code from AT&T, but I can't seem to be able to get to the point where I can punch it in and unlock the phone (no, I do not have a SIM card). Any advice? I tried a bunch of codes to get it to unlock mode, none works. Currently running CM13 on my 1337.
Many thanks!
In order to be promoted for sim unlock code or to enter the unlock code using the dialler menu, the phone needs to be running a stock or close to stock rom with the stock dialler.
Hi All - I recently bought a Samsung Galaxy S8 from someone else. It worked fine when I was with T-mobile but when I moved to another network and popped in a new SIM, it asked me to "Enter network unlock code". I figured it must be locked to T-mobile so I reached out to them. They said my account met all the unlock criteria and said they'll send me instructions via email. I got the email two days later saying I need to use the "Device Unlock App". However, there's no such app on phone and there's no way to install it either (its not in the Play Store). I went back to T-mobile and they said since the device wasn't purchased through T-mobile, its not be a T-mobile "branded" phone. My questions are:
1. If its not a T-mobile branded phone, why does it only work on the T-mobile network? I checked its not rooted. It doesn't have any T-mobile apps and doesn't show any splash screen with the T-mobile logo.
2. Someone said that Samsung GS8 locks to the network of the first SIM you put into an unlocked phone. Is that true?
3. T-mobile says they've "whitelisted" my IMEI, so if I can somehow get the Device Unlock app I may be able to unlock it. Any idea how I can do that? Do I need to flash the firmware and install the T-mobile version or is there another way.
Thanks!
If you need to app, you can try here: https://support.t-mobile.com/docs/DOC-14011
However, as your phone is asking for the unlock code, the app might work but not unlock your phone.
You really need to do a network check and see which network is your phone actually locked. If your phone needs unlocking code, you might need factory level codes.
I think you should visit :
https://support.t-mobile.com