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?
Click to expand...
Click to collapse
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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I've had my S3 about 5 months, I bought it retail from ebay from a seller that didn't unlock it, it is still tied to AT&T. I use Straight Talk as my service as at&t or T-moblie will work with out unlocking them. I want to unlock my phone now and have a question.
Beings that the micro sim in my phone is straight talk and is working, how do I unlock my phone? from what I've read about unlocking, you need to have a NON-WORKING sim to be able to unlock it. Or is there a way to unlock it with out a sim in it?
thanks for your time.
You actually need a Sim that is not att, to unlock. You will need the unlock code from att or you can buy them on the internet. I was able to get my unlock code for my S2 from att. You have to have the phone on their service for at least 6 months, you call them say you are going out of the county for a few weeks, and bam!, they give you the unlock code.
Once you have the code, you need to put in an activated sim from another provider other than att, when you turn the phone on you'll be asked to enter unlock code. Enter the code, hit enter, bam unlocked.
This won't work with a sim that is not active.
So if you have a straight talk sim in, and have for six months, and its working, and its a i747, then I think you have a unlocked phone.
Sent from my SAMSUNG-SGH-I747 using xda premium
just to clarify, you do NOT have to have AT&T for any given amount of time before you receive an unlock code.
i was an AT&T customer for all of 10 days and got my unlock code for my Galaxy S3. it is VERY dependent on the agent you speak to for asking for an unlock code.
anyways, since you are using Straight Talk, you should have an unlocked phone. best way to test is try to put a different SIM card in it and see what happens.
I was told my device was "ineligible" to be unlocked. AT&T sucks.
If you don't want to waste time talking to a rep that may or may not help you, use this method, it's easy and free: http://forum.xda-developers.com/showthread.php?t=2014982 (it's for the Note II but it works on the AT&T S3). You don't need a non-working sim for this method to work, but you won't know if it worked until you put in a non-working sim.
Also, you'll likely only get Edge network on T-Mobile unless you happen to be one of the lucky few in an areas where you can get 3G or H+.
But as posted in other threads, if you're going to call AT&T, call their International Support line: 1-800-335-4685 (found here: http://forum.xda-developers.com/showthread.php?t=1962453&page=16 )
skrambled said:
I was told my device was "ineligible" to be unlocked. AT&T sucks.
If you don't want to waste time talking to a rep that may or may not help you, use this method, it's easy and free: http://forum.xda-developers.com/showthread.php?t=2014982 (it's for the Note II but it works on the AT&T S3). You don't need a non-working sim for this method to work, but you won't know if it worked until you put in a non-working sim.
Also, you'll likely only get Edge network on T-Mobile unless you happen to be one of the lucky few in an areas where you can get 3G or H+.
But as posted in other threads, if you're going to call AT&T, call their International Support line: 1-800-335-4685 (found here: http://forum.xda-developers.com/showthread.php?t=1962453&page=16 )
Click to expand...
Click to collapse
Thanks for all the great info, I'll give these a try.
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
My friend purchased a Samsung S4 M919 from someone he knows for $30 this week. He wanted to set it up via prepaid. He got the sim card and the refill card. Created the account and the sim is active and working (Tried it in another phone). When it comes on it just says no service. I tried searching the networks and having it connect to T-Mobile but it just says unable to connect. The phone was just unlocked via a unlock code and that was successful (Tried the service code way and it didn't work).
I did find out just recently that the previous owner had a balance on this phone or account. Is that why it wont work and is that the case on Prepaid as well? If so, would it work on AT&T? I did try a sim but its not an active one and it didn't pick up the network.
Running Stock Rom 5.1
Any help would be appreciated.
Also I wanted to check to make sure the phone was working properly I put in an old AT&T sim card but the network did not come up. Is that normal since the sim is not active or should it show the network? I want to make sure its working before my friend spends more money on another prepaid sim.
If the phone had a previous balance due, it will not pick up service. The phone is likely blocked until the balance is paid off
Sent from my SM-G920T using Tapatalk
That would only be on T-Mobile right? It should work other services like AT&T, etc...
aries426 said:
That would only be on T-Mobile right? It should work other services like AT&T, etc...
Click to expand...
Click to collapse
Not necessarily, it could also be blocked on other networks. It may or may not work
Sent from my SM-G920T using Tapatalk
I thought if a phone was blocked from a carrier because it was stolen or lost then it's Blacklisted, that goes to all carriers. But I thought if its blocked on a carrier or non payment it's only blocked for that carrier. If you unlock the phone you can use it on other carriers. Is that right?
I found out from my friend that the person he got the phone from did owe on it but he thinks it was on the bill but it might have been the phone.
I have two Sprint Samsung Note 4 phones and switching the carrier from Sprint to Metro PCS. I received the unlock codes from Sprint earlier today, after being on the phone for about an hour,
However, Metro PCS sales reps/techs were unable to complete the unlock process, since SIM unlock screen did not show and they have never worked on Samsung Note 4 before.
Metro PCS reps tried multiples times with metro pcs SIM card, and without SIM card to unlock the both sprint Note 4 phones , but none of the below procedures worked, unlock screen never appeared to insert the code.
Method #1 Insert a Non accepted SIM card in your phone and power on. Once finished loading your phone will ask you to enter a code, enter the Unlock Code, unlock screen did not show.
Method #2 Go to the dial screen on your phone as if you are going to make a call and press: #7465625*638*UNLOCKCODE# (8 digit unlock code) unlock screen did not show.
Method #3 Go to the dial screen on your phone as if you are going to make a call and press: #0111*UNLOCKCODE# (8 digit unlock code) unlock screen did not show.
Method #4 Go to the dial screen on your phone as if you are going to make a call and press #7465625*638*# Once prompted for code, enter the 8 digit Unlock Code. unlock screen did not show.
Is there another way to enter the code to unlock the note 4 simlock?
We would like to get both Note 4s unlocked and switch to Metro PCS ASAP.
Thanks in advance !!
SNote44 said:
I have two Sprint Samsung Note 4 phones and switching the carrier from Sprint to Metro PCS. I received the unlock codes from Sprint earlier today, after being on the phone for about an hour,
However, Metro PCS sales reps/techs were unable to complete the unlock process, since SIM unlock screen did not show and they have never worked on Samsung Note 4 before.
Metro PCS reps tried multiples times with metro pcs SIM card, and without SIM card to unlock the both sprint Note 4 phones , but none of the below procedures worked, unlock screen never appeared to insert the code.
Method #1 Insert a Non accepted SIM card in your phone and power on. Once finished loading your phone will ask you to enter a code, enter the Unlock Code, unlock screen did not show.
Method #2 Go to the dial screen on your phone as if you are going to make a call and press: #7465625*638*UNLOCKCODE# (8 digit unlock code) unlock screen did not show.
Method #3 Go to the dial screen on your phone as if you are going to make a call and press: #0111*UNLOCKCODE# (8 digit unlock code) unlock screen did not show.
Method #4 Go to the dial screen on your phone as if you are going to make a call and press #7465625*638*# Once prompted for code, enter the 8 digit Unlock Code. unlock screen did not show.
Is there another way to enter the code to unlock the note 4 simlock?
We would like to get both Note 4s unlocked and switch to Metro PCS ASAP.
Thanks in advance !!
Click to expand...
Click to collapse
Might want to call Sprint back..tried to unlock my wife iPhone. Sprint representative told it was unlocked just insert another carrier sim card and you are good to go.. insert T-Mobile sim card, no network. Called back, the phone was never unlocked the original representative didn't do it right.
Sent from my Note 4 using XDA Labs
KLPFL said:
Might want to call Sprint back..tried to unlock my wife iPhone. Sprint representative told it was unlocked just insert another carrier sim card and you are good to go.. insert T-Mobile sim card, no network. Called back, the phone was never unlocked the original representative didn't do it right.
Sent from my Note 4 using XDA Labs
Click to expand...
Click to collapse
I just found out Sprint Samsung Note 4 is Domestic SIM Unlockable and I was given the MSL (Master Subsidy Lock) code , instead of Domestic SIM Unlock (DSU) from the sprint agent.
Also, CDMA device (Sprint is CDMA) can only be used on another CDMA carrier. In the U.S., Sprint, Verizon and U.S. Cellular use CDMA. AT&T and T-Mobile Metro PCS) use GSM.
SNote44 said:
I just found out Sprint Samsung Note 4 is Domestic SIM Unlockable and I was given the MSL (Master Subsidy Lock) code , instead of Domestic SIM Unlock (DSU) from the sprint agent.
Also, CDMA device (Sprint is CDMA) can only be used on another CDMA carrier. In the U.S., Sprint, Verizon and U.S. Cellular use CDMA. AT&T and T-Mobile Metro PCS) use GSM.
Click to expand...
Click to collapse
If I remember correctly, someone user in here using Sprint N4 on GSM... I might not get the LTE due to the band on the other carrier but if it's unlocked you can use it b/c it does have sim.
go here and put the info and see if it work or not.
http://willmyphonework.net/
---------- Post added at 04:09 PM ---------- Previous post was at 04:06 PM ----------
i just input what you listed, it said you can use on MetroPCS but no 4G LTE
SNote44 said:
I just found out Sprint Samsung Note 4 is Domestic SIM Unlockable and I was given the MSL (Master Subsidy Lock) code , instead of Domestic SIM Unlock (DSU) from the sprint agent.
Also, CDMA device (Sprint is CDMA) can only be used on another CDMA carrier. In the U.S., Sprint, Verizon and U.S. Cellular use CDMA. AT&T and T-Mobile Metro PCS) use GSM.
Click to expand...
Click to collapse
This phone works on both cdma and gsm. It has both radios in it. Only thing is Sprint blocks some of the lte bands, so depending on your carrier you won't get lte. Pic below of lte bands.
I use this phone with Cricket(AT&T). I don't know if this phone unlocks with a number. I think there's just code that needs changed in the efs partition and settings in hidden menu. I'm not sure as i just paid Idone unlock app to unlock mine.
If you can't figure it out for free and decide to go the paid app route, I highly suggest idone apps.
Or try this for free: https://forum.xda-developers.com/no...print-users-easy-downgrade-to-kitkat-t3471131
I have this phone, apparently sprint says they have "unlocked" it, for domestic use as well (no longer under contract, new device, etc.) but of course there is no UNLOCK screen when I put in a t-mobile or mintsim card only says INVALID SIM. What else does one need to do?
Reset the phone completely?
I was given some code, is that the MSL code?
Shouldn't this somehow be easier?
tivoboy said:
I have this phone, apparently sprint says they have "unlocked" it, for domestic use as well (no longer under contract, new device, etc.) but of course there is no UNLOCK screen when I put in a t-mobile or mintsim card only says INVALID SIM. What else does one need to do?
Reset the phone completely?
I was given some code, is that the MSL code?
Shouldn't this somehow be easier?
Click to expand...
Click to collapse
I'm unsure of this because I paid to have mine unlocked.
But in settings, there's "UICC UNLOCK" Try that! With your code.
aaron74 said:
I'm unsure of this because I paid to have mine unlocked.
But in settings, there's "UICC UNLOCK" Try that! With your code.
Click to expand...
Click to collapse
thanks, I've tried selecting that and it does nothing and doesn't offer anything where one can input the code?
tivoboy said:
thanks, I've tried selecting that and it does nothing and doesn't offer anything where one can input the code?
Click to expand...
Click to collapse
You can try this: dial ##72786# and press YES.
This is from another thread. It will erase your phone, so backup anything important. Put your new sim in and input above code. It'll reprovision your device.
aaron74 said:
You can try this: dial ##72786# and press YES.
This is from another thread. It will erase your phone, so backup anything important. Put your new sim in and input above code. It'll reprovision your device.
Click to expand...
Click to collapse
i've tried this , the phone goes to something called SCRTN and then reboots, but everything is still there and it says " are you currently talking with an agent" So, that doesn't really seem to erase everything at all? I've tried it with the sprint sim (deactivated) in and the new t-mobile and or the new mintsim in.
tivoboy said:
i've tried this , the phone goes to something called SCRTN and then reboots, but everything is still there and it says " are you currently talking with an agent" So, that doesn't really seem to erase everything at all? I've tried it with the sprint sim (deactivated) in and the new t-mobile and or the new mintsim in.
Click to expand...
Click to collapse
Ok, sorry. I'm stumped. I use mine in USA, and i know USA unlock is harder so i just paid idone.
aaron74 said:
Ok, sorry. I'm stumped. I use mine in USA, and i know USA unlock is harder so i just paid idone.
Click to expand...
Click to collapse
thanks It's just SOOO bloody annoying. They SAY it's unlockable, they SAY they will unlock it, its clearly paid off and not under contract (was a cust 10 years 20 if you include work) and i've spent HOURS on the phone, chat, emailing etc. MSL does jack s..t.
does the idophoneapp unlock for DUN and does it open up LTE bands, or is that still a problem too?
tivoboy said:
thanks It's just SOOO bloody annoying. They SAY it's unlockable, they SAY they will unlock it, its clearly paid off and not under contract (was a cust 10 years 20 if you include work) and i've spent HOURS on the phone, chat, emailing etc. MSL does jack s..t.
does the idophoneapp unlock for DUN and does it open up LTE bands, or is that still a problem too?
Click to expand...
Click to collapse
If your speaking about using it for gsm service, then NO! The LTE bands is a whole other issue. You'll only get 4g hspa+. There have been many to try getting lte to work including myself, but no luck.
What you mean by dun? I've heard it mentioned, never knew what it stood for. Hot spot tethering i think you mean by that.
Yes it unlocks mobile hotspot. But if you install a custom Rom after, it'll also have to have it in it.
I understand your frustration. I've seen similar post of Sprint customers being locked out. I was never with Sprint, when i bought phone, i just got it unlocked!
Same problem:/
SNote44 said:
I have two Sprint Samsung Note 4 phones and switching the carrier from Sprint to Metro PCS. I received the unlock codes from Sprint earlier today, after being on the phone for about an hour,
However, Metro PCS sales reps/techs were unable to complete the unlock process, since SIM unlock screen did not show and they have never worked on Samsung Note 4 before.
Metro PCS reps tried multiples times with metro pcs SIM card, and without SIM card to unlock the both sprint Note 4 phones , but none of the below procedures worked, unlock screen never appeared to insert the code.
Method #1 Insert a Non accepted SIM card in your phone and power on. Once finished loading your phone will ask you to enter a code, enter the Unlock Code, unlock screen did not show.
Method #2 Go to the dial screen on your phone as if you are going to make a call and press: #7465625*638*UNLOCKCODE# (8 digit unlock code) unlock screen did not show.
Method #3 Go to the dial screen on your phone as if you are going to make a call and press: #0111*UNLOCKCODE# (8 digit unlock code) unlock screen did not show.
Method #4 Go to the dial screen on your phone as if you are going to make a call and press #7465625*638*# Once prompted for code, enter the 8 digit Unlock Code. unlock screen did not show.
Is there another way to enter the code to unlock the note 4 simlock?
We would like to get both Note 4s unlocked and switch to Metro PCS ASAP.
Thanks in advance !!
Click to expand...
Click to collapse
We're you able to figure it out. I'm having the exact same issue, and I can't find how to do it anywhere :crying:
Me too same issue. Gunna try downgrading my bootloader
trying to decide which to purchase.
Carrier locked T-Mobile P6P has rules when it comes to SIM unlocking, spending at least 40 days on their network and Bootloader Unlocking. Google Store P6P is unrestricted
If you're buying the T-Mobile variant, there's no difference if you get it through the Google Store versus through T-Mobile. If you're talking about an unlocked P6P through the Google Store, the difference is that it's factory SIM unlocked so that you can use it with other carriers as you wish without jumping through hoops, and you can unlock the bootloader if you wish.
The T-Mobile variant has been reported to be very easily unlocked however. Just search this section for T-Mobile in the title and you'll find the information you need. Just needs contacting their helpful customer service.
Don't think there is a difference. Bought mine at T-Mobile. Only difference is it's initially SIM locked, in turn can't bootloader unlock until you pay it off and 40 days on network. OR ask them nicely to SIM unlock and you might get lucky.
Should only be the SIM unlock as mentioned....
Just plug in the sim wait 24hrs, for it register the device on TMobile end. Contact them via chat on the T-Mobile app. Ask them to unlock the device. They will offer you temp unlock. Tell them it keeps failing & they will perm unlock on their end. Reboot device and oem unlock.
djhotsauce said:
Just plug in the sim wait 24hrs, for it register the device on TMobile end. Contact them via chat on the T-Mobile app. Ask them to unlock the device. They will offer you temp unlock. Tell them it keeps failing & they will perm unlock on their end. Reboot device and oem unlock.
Click to expand...
Click to collapse
Sounds too good to be true.
I got a Verizon P6 in March. Travelled out of the country within a month, used the phone with a local sim in the UAE. Now, suddenly, my phone is carrier locked. Tried contacting them but no use.
Question is, what can a person do who is out of the USA, out of the TMobile network and doesn't have the TMobile login active anymore?
So, the local sim doesn;t work. If I disable any and all packages that have 'vzw' or 'verizon' in the name, the sim works fine and connects to the network and I can make calls. But as soon as I turn on 4G or connect to a wifi network, BAM, the sim network gets disabled (shows an exclamation mark in the bar) and I have to factory reset the phone and go though all the adb commands again.
As a last resort, I've installed NetGuard and blocked everything and want to unblock packages one by one and see which one triggers the sim-lock... but hasn;t worked yet...
Any ideas?