Unlocked phone locked after one year with "Network locked SIM card inserted" - Upgrading, Modifying and Unlocking

Unlocked phone locked after one year with "Network locked SIM card inserted"
I purchased new unlocked Galaxy Alpha on eBay about a year ago. The phone worked fine this whole time and suddenly after a short outage of my mobile network it got kicked out with "Network locked SIM card inserted" message.
My operator checked the SIM is OK with other phone and gave a me couple of codes which didn't work so they told me they can't fix it.
I tried to buy unlock code on several Web sites but couldn't find someone supporting Galaxy Alpha with Israel Pelephone provider.
How is it even possible for the phone to lock after being unlocked for such a long period of time? What sites can you recommend for getting unlock codes?
Thanks.

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[Q] problem with network lock

i brought my galaxy nexus in ireland on vodafone bill pay,and now i need to go abroad for a month and change the sim card, but my phone is locked to vodafone, and i can get the network access code in 6 months because of the contract.
so is there anyone can help me with this?
thanks in advance!
butcher977 said:
i brought my galaxy nexus in ireland on vodafone bill pay,and now i need to go abroad for a month and change the sim card, but my phone is locked to vodafone, and i can get the network access code in 6 months because of the contract.
so is there anyone can help me with this?
thanks in advance!
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Click to collapse
Contact vodafone for an unlock code or contact the ebay guy in the main sticky who you can get the same code off of (in minutes usually) for a small price
animaleyes76 said:
Contact vodafone for an unlock code or contact the ebay guy in the main sticky who you can get the same code off of (in minutes usually) for a small price
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im really confused , the page of requiring unlock code doesn't show up when i put in another sim card, there's no place for me to put in the code
butcher977 said:
im really confused , the page of requiring unlock code doesn't show up when i put in another sim card, there's no place for me to put in the code
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Click to collapse
This. I have the same problem (different country and carrier). I put in a different SIM and no place for me to add an unlock code (if I get one).
depends on where you are going to and what you will be using the most.
i use VF passport and euro data, keeps costs down quite a bit although if you are going to be hammering the data then a 'local' sim card might be best
can you not just get a 'local' vf sim for where you are travelling to? it might work
dipson626 said:
This. I have the same problem (different country and carrier). I put in a different SIM and no place for me to add an unlock code (if I get one).
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can u get the unlock code from your carrier?
is the GN actually locked to vf? have you tried a different sim in it?
jonny_rubber said:
is the GN actually locked to vf? have you tried a different sim in it?
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yes ,im pretty sure abt that,
and im going to china where the vodafone passport does not cover,so i have to get a local one to save cost
I haven't bothered asking my carrier because I'm not even prompted for a code when adding a different SIM. I wouldn't know what to do with it if I had it.
Sent from my Galaxy Nexus using xda premium
mine asked me when i put a new sim in but the instructions from the guy slelling the codes suggested the following in his email
"To unlock your phone, please put a SIM card from another network that not same as your phone locked to, then input the unlock code above. You might need to disable or input your simcard's PIN first before entering the unlock code.
You can also try dialing #7465625*638*# and then input the unlock code."
butcher977 said:
yes ,im pretty sure abt that,
and im going to china where the vodafone passport does not cover,so i have to get a local one to save cost
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ah thats a shame.
I would try a different sim in it anyway just to be sure as i am sure i read that the GN would be unlocked
i just called the vodafone adviser and he said my friend who is eligible to unlock a phone can unlock my phone for me .sounds great to me
jonny_rubber said:
ah thats a shame.
I would try a different sim in it anyway just to be sure as i am sure i read that the GN would be unlocked
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r u sure about the "unlock" is for network instead of the lock of bootloader?
animaleyes76 said:
mine asked me when i put a new sim in but the instructions from the guy slelling the codes suggested the following in his email
"To unlock your phone, please put a SIM card from another network that not same as your phone locked to, then input the unlock code above. You might need to disable or input your simcard's PIN first before entering the unlock code.
You can also try dialing #7465625*638*# and then input the unlock code."
Click to expand...
Click to collapse
ill try when i got the unlock code ,thanks!
this is what it says regarding the NUC
We’ll supply a Network Unlock Code (NUC) for you if you've bought a phone from us on either pay monthly or pay as you go. An NUC allows you to use non-Vodafone SIM cards with your Vodafone phone. If the unlock code is held in our systems, you’ll receive the unlock code and instructions by email within 24 hours. If the unlock code isn’t held by us, you’ll get an email confirming your request has been received - and that the turnaround time is 48 hours for all makes except Samsung, which is 7-10 working days.
You can only get unlock codes for the numbers on your account. If you have two mobile numbers on your account, then you can get two free unlock codes. There’s usually no charge for these network unlock codes.
Most pay monthly phones and devices are not network locked. Before requesting a network unlock code, please try a non-Vodafone SIM card and check for error messages.
so if you have a different sim lying about or a friend on a different network give it a try i would give it a go but all my work sims went back to the office for christmas
jonny_rubber said:
this is what it says regarding the NUC
We’ll supply a Network Unlock Code (NUC) for you if you've bought a phone from us on either pay monthly or pay as you go. An NUC allows you to use non-Vodafone SIM cards with your Vodafone phone. If the unlock code is held in our systems, you’ll receive the unlock code and instructions by email within 24 hours. If the unlock code isn’t held by us, you’ll get an email confirming your request has been received - and that the turnaround time is 48 hours for all makes except Samsung, which is 7-10 working days.
You can only get unlock codes for the numbers on your account. If you have two mobile numbers on your account, then you can get two free unlock codes. There’s usually no charge for these network unlock codes.
Most pay monthly phones and devices are not network locked. Before requesting a network unlock code, please try a non-Vodafone SIM card and check for error messages.
so if you have a different sim lying about or a friend on a different network give it a try i would give it a go but all my work sims went back to the office for christmas
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all i have now is a chinese sim card, and a friend who has the same problem as me.when i put the chinese sim into my friend SE xperia arc ,the page of error and requiring a unlock code pop out and the signal is full. but when i did it to mine ,there was nothing i just go straight to the home page and, undoubtedly ,no signal no network cant make calls
are you in china now?
what happened when you put the chinese sim card into the gn? did you get any messages or any signal displayed etc? is the sim card activated?
(i had problems with my SE x10 in europe)
jonny_rubber said:
are you in china now?
what happened when you put the chinese sim card into the gn? did you get any messages or any signal displayed etc? is the sim card activated?
(i had problems with my SE x10 in europe)
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Click to collapse
no ,im in ireland
google brand-animation-loading apps-go to lock screen says "emergency calls only"at the bottom-after unlock the screen it goes to homescreen-when i trying to make a phone call ,it says mobile network not available
my GN says 'emergency calls' until its unlocked then it goes to the homescreen.
when you unlock the phone does it display any sort of signal strength or not?
there might be something odd with using a chinese sim card in ireland, can you try a sim card from one of the other Irish operators?
jonny_rubber said:
my GN says 'emergency calls' until its unlocked then it goes to the homescreen.
when you unlock the phone does it display any sort of signal strength or not?
there might be something odd with using a chinese sim card in ireland, can you try a sim card from one of the other Irish operators?
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Click to collapse
no signal at all
i dont have any now

[Q] carrier unlock "issue"

Okay I'll try to keep this as short and sweet as possible. I purchased an at&t xperia play, and then purchased an unlock code from eBay and popped my tmobile sim card in, entered the code, and it came up with a message similar to "network unlock successful". I got tired of the phone so I threw it back on eBay. The lady that purchased the phone is now claiming I sold her a phone that was locked to at&t, and wanting a full refund. She's saying when she boots it up it says "out of area" with her sim card. Am I wrong to assume that if the phone "wasn't unlocked" it would ask for a network unlock code when she booted it up with her sim just like it did when I inserted my tmobile sim? I naturally expected the unlock code I purchased to work like every other code I've purchased, and permanently unlock the device? Any advice is greatly appreciated!
rtg293 said:
Am I wrong to assume that if the phone "wasn't unlocked" it would ask for a network unlock code when she booted it up with her sim just like it did when I inserted my tmobile sim?
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That sounds true to me. Honestly there are some very ignorant people purchasing items on ebay. just a few days ago i got a message for a wii game that I sold, she claimed it didnt work and wanted a refund. The next day the told me that that AV CORDS WEREN'T PLUGED IN!!! You never know the lady could have the sim installed upside down.

[Q] Sim Card question

I bought a r800at off of amazon and am still waiting for a SIM card from straight talk. I tried an old (5 Years) non active SIMand it was not recognized ("No SIM" on top) I went to sam's club and they gave me a new non active SIM card same result. My question is do the SIM card have to be active to be recognized or should it "see" the card but say no service. I will not receive the card for a couple of days but I want to start the return process as soon as possible. Thanks for the consideration.
Your r800at might be carrier lock to att. Which means no simcard would work other than att you have to pay for the unlock. Or take the r800at to nearby att tore and have them unlock the device for you.

SIM network unlock PIN

So I got my hands a new Nexus 5X from an EE retail store in UK, although I'm happy to use EE for everyday use there are times when I travel and need to swap SIMs due to black spots. Much to my horror and bemusement I discovered that my brand new 5X is indeed network locked, so there's that myth put to bed for non believers.
I have requested an unlock code from the network, unfortunately patience is not one of my strong points, does anyone know of any sites that offer an unlock for the 5X? I tried one this morning but it came back 'no code found'. If anyone knows of a site that can help, I'd appreciate a PM with the details.
Thanks.
For what is worth, I also got, from. my local carrier a brand new Nexus 5X. LG H790. Well, it turns out to be Network locked as well. Whenever the phone is turned on with the SIM in of another carrier it asks for: "SIM Network Unlock PIN"
I went on and bought online from two different companies sim unlock codes, from the first company: SimUnlock dot com was not able to found a code and after a few days, said so snd proceed to reimburse me.The second company: MasterUnlock dot com did return, very quickly (fte minutes after online purchase) a few codes, named
NCK NSCK SPCK CPCK SIMCK, tried the NCK and the SPCK as per the instructions received but none worked "unlock unsucessful", seems they are also reimbursing me.
So, I dont know whats next, as the carrier wont give out the unlock codes.
My Nexus 5X is locked to Mexico's carrier Telcel.
I have just had this exact same issue (EE UK). I didn't realise this was now a thing! I honestly thought these companies had grown up by now. but apparently not.
Has anyone come across a solution to these? If not, does anyone know if these codes are carrier specific and individual, or generic?
I'd appreciate any info anyone has on this as it's a new thing to me!
Sim Network Unlock Pin
The sim Network Unlock Pin in an code need to unlock your device to work on any Sim card in the world. To do this is need to find some good service where to unlock and to get your sim network unlock code, then add other sim card not original and in the form add your sim network unlock pin code to unlocked your mobile. For full information what is Sim Network Unlock Pin and how to get read this guide here. simnetworkunlockpin.com

In a bit of a bind here.

Getting straight to it. I'm in the process of switching from Ting to AT&T. I purchased an AT&T SIM on eBay that can be used for AT&T services or GoPhone PrePaid services. I want to use GoPhone Prepaid services. I activated the SIM online on AT&T's website and got my new number. Now here's where the problem rears its ugly head. I couldn't figure out why it would not let my turn the Mobile Data on. So I installed a SIM Card status app and found that the SIM needs a PUK code. I contacted AT&T and they provided me with the PUK code for my phone but we could not figure out how to get it to actually ask for the PUK code. Any ideas?
Gurren Lagann said:
Getting straight to it. I'm in the process of switching from Ting to AT&T. I purchased an AT&T SIM on eBay that can be used for AT&T services or GoPhone PrePaid services. I want to use GoPhone Prepaid services. I activated the SIM online on AT&T's website and got my new number. Now here's where the problem rears its ugly head. I couldn't figure out why it would not let my turn the Mobile Data on. So I installed a SIM Card status app and found that the SIM needs a PUK code. I contacted AT&T and they provided me with the PUK code for my phone but we could not figure out how to get it to actually ask for the PUK code. Any ideas?
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Well, in my country, the PUK screen comes up after setting a SIM lock and entering the wrong code fro three times. When you have entered the wrong SIM Lock code for the third time, it will lock you out thinking you are a thief and would then ask for the PUK code just like android lockscreen asks for your email after several failed unlock attempts.
Hope it works for you.
Regards Mickey
I have a question about my unlocked T-Mobile LG G3 [d851]. I bought it factory unlocked and used it with Ting (Sprint network) for a few years. I just recently switched to AT&T's GoPhone Prepaid services and have had nothing but problems since then. I went into the store, switched to AT&T’s GoPhone services, and ported over my phone number. When the staff member inserted the new GoPhone SIM and turned it on, it asked for a PUK code. She entered the PUK code and then realized that Mobile Data could not be turned on. So there was no way to set an APN.
She rebooted the phone and at the lock screen, it said Network Locked. Ting is in the process of cancelling my account but if I were to put the Ting SIM back in, the phone is able to read the SIM and tell me everything about it. So, this phone is actually still unlocked…. But I don’t care about that. What I want is to be able to use AT&T’s services. I ended up going home still unable to get the talk, text, and data services to work.
I don’t understand how an unlocked phone could re-lock itself just because of a different SIM Have you guys ever ran into a problem of this nature?
I hope somebody can shed some light on this ordeal.
mickeyasamoah said:
Well, in my country, the PUK screen comes up after setting a SIM lock and entering the wrong code fro three times. When you have entered the wrong SIM Lock code for the third time, it will lock you out thinking you are a thief and would then ask for the PUK code just like android lockscreen asks for your email after several failed unlock attempts.
Hope it works for you.
Regards Mickey
Click to expand...
Click to collapse
I actually found the issue a few days ago. The phone somehow Networked Locked itself to just T-Mobile. So, I had to unlock the phone again (I bought it already unlocked). Once I unlocked it and popped in the AT&T GoPhone SIM, I noticed that it did not reject the SIM. At this point I was able to make and receive calls but the Data was not working. I went back and entered the updated AT&T APN Settings and that did the trick! Let me just say that I REALLY LOVE my new AT&T GoPhone services.
I am now getting strong 4G signals where ever I go. Even the areas where I couldn’t get any bars initially now have very strong 4G signals. This is amazing… And AT&T GoPhone service has flexible plans that can be changed at any time in my GoPhone account. I am currently using their Unlimited Talk, Text, and Data Plan w/ the first 2 GBs at high speed then 128 KB/s afterwards. I had no idea Sprint was that crappy… I can’t believe that I stuck it out with them for years….

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