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Hello,
This is my first XDA forum post. And I am sorry for it to be about a trouble question.
I've recently bought a Xperia TL Lt30at that is AT&T from ebay.
Anyway, I am planning on using it in Mexico from time to time, since I live near the border, so I bought another carrier's SIM (Telcel) and was to unlock the phone.
But now that I called AT&T to get the Unlock pin number (for free) they told me the phone's imei was blacklisted.
Questions:
Can I still unlock it to use in Mexico with Tecel carrier even if the IMEI is blacklisted on AT&T?
and, Why after inserting Telcel SIM into the phone the SIM NETWORK UNLOCK PIN screen does not show? Do you know why this is not showing?
Could it be that the blacklisted IMEI is not allowing the Unlock pin screen to show after inserting another SIM?
Many thanks in advance
adagium said:
Hello,
This is my first XDA forum post. And I am sorry for it to be about a trouble question.
I've recently bought a Xperia TL Lt30at that is AT&T from ebay.
Anyway, I am planning on using it in Mexico from time to time, since I live near the border, so I bought another carrier's SIM (Telcel) and was to unlock the phone.
But now that I called AT&T to get the Unlock pin number (for free) they told me the phone's imei was blacklisted.
Questions:
Can I still unlock it to use in Mexico with Tecel carrier even if the IMEI is blacklisted on AT&T?
and, Why after inserting Telcel SIM into the phone the SIM NETWORK UNLOCK PIN screen does not show? Do you know why this is not showing?
Could it be that the blacklisted IMEI is not allowing the Unlock pin screen to show after inserting another SIM?
Many thanks in advance
Click to expand...
Click to collapse
hello;
insert at&t sim card, dial *#*#7378423#*#* after this there will be several options shown, choose "service info" and then "sim lock" , there will be listed 5 things , first one is "network" , if you wanna know if your phone is at&t locked, there should be 'x' between [ ], like this [x] network and the number, maybe 5,4 or three, this last number shows the attempts left for network unlock; if there is no x between [] this means that your phone is unlocked for all carrier ; if there is x between [] and last number id not 0, you can unlock it! just search by google ,there are several websites which offer unlock codes for amount of money, you only provide imei code , and they generate code" to see imei , dial *#06#;
geniusatplay said:
hello;
insert at&t sim card, dial *#*#7378423#*#* after this there will be several options shown, choose "service info" and then "sim lock" , there will be listed 5 things , first one is "network" , if you wanna know if your phone is at&t locked, there should be 'x' between [ ], like this [x] network and the number, maybe 5,4 or three, this last number shows the attempts left for network unlock; if there is no x between [] this means that your phone is unlocked for all carrier ; if there is x between [] and last number id not 0, you can unlock it! just search by google ,there are several websites which offer unlock codes for amount of money, you only provide imei code , and they generate code" to see imei , dial *#06#;
Click to expand...
Click to collapse
Thanks for the info. I've already done that and I checked the IMEI number, that is how after calling at&t to unlock my phone they notified me that the IMEI was blacklisted.
The phone has 10 unlock tryouts left.
Do you know if this is causing the phone not to show the SIM NEWTWORK UNLOCK PIN screen after inserting an invalid carrier SIM? Because I can reproduce this from any video I have seen.
adagium said:
Thanks for the info. I've already done that and I checked the IMEI number, that is how after calling at&t to unlock my phone they notified me that the IMEI was blacklisted.
The phone has 10 unlock tryouts left.
Do you know if this is causing the phone not to show the SIM NEWTWORK UNLOCK PIN screen after inserting an invalid carrier SIM? Because I can reproduce this from any video I have seen.
Click to expand...
Click to collapse
no , blacklisted imei is not the reason ; when you insert invalid sim, what is happening? does your phone detect sim and is there any signal?
geniusatplay said:
no , blacklisted imei is not the reason ; when you insert invalid sim, what is happening? does your phone detect sim and is there any signal?
Click to expand...
Click to collapse
That is the thing also. I had a regular size SIM card from another carrier, I cut it using a template to fit the Xperia TL that uses MicroSIM (I tested that it still works on phones that use the regular size) and when I place it inside the TL it does not recognize the SIM like it is not there.
Could it be that I need to get a real MicroSIM from another carrier to display the SIM UNLOCK NETWORK PIN screen?
adagium said:
That is the thing also. I had a regular size SIM card from another carrier, I cut it using a template to fit the Xperia TL that uses MicroSIM (I tested that it still works on phones that use the regular size) and when I place it inside the TL it does not recognize the SIM like it is not there.
Could it be that I need to get a real MicroSIM from another carrier to display the SIM UNLOCK NETWORK PIN screen?
Click to expand...
Click to collapse
yes of course, you need good micro sim card, phone does not detect sim card because it is not well cut; if the phone works perfectly with other sim it means that there is no damage to sim slot; i also have got xperia lt30at; I cut micro sim using template and it worked fine; when there is no sim card detected, the SIM UNLOCK NETWORK PIN screen will never appear
Thanks for your help, I have gotten a new microSIM from my carrier and it works. Seems the other one was very old and not even cutting it would have worked.
Now it does display the SIM UNLOCK NETWORK PIN screen after inserting it.
Yo don't know if you unlocked it yet but I just unlocked one for sell n it can't be blacklisted cause all the networks have the imei number n it won't allow the phone to work?
Sent from my SAMSUNG-SGH-I337 using xda premium
Hi I have a HTC ONE MODEL: HTCPN072. It is a sprint phone I just baught on the web. The problem I have is that the cellphone cannot connect when ever i put in a Jamaican SIM Card in it. When ever I put in a GSM sim card it is saying 'Invalid SIM CARD. 4G service are unavailable as the sim/UICC is invalid'' I dont know if u can Help me please because this phone is a brand new one!
Can this phone be used in Jamaica? on 2G and 3G networks?
How do I know if it is a GSM OR CDMA mobile phone?
rohan1992 said:
Hi I have a HTC ONE MODEL: HTCPN072. It is a sprint phone I just baught on the web. The problem I have is that the cellphone cannot connect when ever i put in a Jamaican SIM Card in it. When ever I put in a GSM sim card it is saying 'Invalid SIM CARD. 4G service are unavailable as the sim/UICC is invalid'' I dont know if u can Help me please because this phone is a brand new one!
Can this phone be used in Jamaica? on 2G and 3G networks?
How do I know if it is a GSM OR CDMA mobile phone?
Click to expand...
Click to collapse
Is the phone sim unlocked? I don't know how it works with Sprint but that would be the case with GSM providers
If it's Sprint, it's CDMA.AT&T and T-Mobile are the only GSM providers in the US. However, it should work there if you get the SIM unlocked. The SIM unlock code is formulated based on the IMEI, so there are three ways to get it:
From Sprint. Probably the simplest, but tricky if you're not the phone's original owner.
Pay a site or unlocking service with the algorithm that decodes it from the IMEI. Usually runs around $10-$20.
Try the steps in this thread:
http://forum.xda-developers.com/showthread.php?t=2586704
You can also try this app, but it only works on rooted phones running the original ROM:
https://play.google.com/store/apps/details?id=com.viper.simunlockhelperfree
Good luck.
How do i go about unlocking the Sim? I cant get the unlock box where I put in the code to come up!
rohan1992 said:
How do i go about unlocking the Sim? I cant get the unlock box where I put in the code to come up!
Click to expand...
Click to collapse
Bro, A CDMA PHONE CANNOT BE UNLOCKED. IT WON'T EVEN WORK ON ANOTHER CDMA CARRIER LIKE VERIZON. ONLY SPRINT SIMs WILL WORK.
Make sure u buy a GSM phone if u plan 2 use it on another carrier.
But the phone uses GSM! It picks up the network here but I just cant get the unlock box
rohan1992 said:
But the phone uses GSM! It picks up the network here but I just cant get the unlock box
Click to expand...
Click to collapse
Then it simply isn't a Sprint handset. CDMA phones can only work on that particular network. The phone is custom-made just for that network
I have unlocked my Z1s from T-Mobile's network so it should work on AT&T as they are both GSM and use most of the same bands. After unlocking it and verifying that my phone is indeed unlocked I put my AT&T SIM card in and the phone reset but it does not recognize the SIM card. Is this something AT&T needs to solve, or is there a way I can remedy this issue?
Jimmy Putts said:
I have unlocked my Z1s from T-Mobile's network so it should work on AT&T as they are both GSM and use most of the same bands. After unlocking it and verifying that my phone is indeed unlocked I put my AT&T SIM card in and the phone reset but it does not recognize the SIM card. Is this something AT&T needs to solve, or is there a way I can remedy this issue?
Click to expand...
Click to collapse
What method did you use to unlock?
Sent from my Xperia Z1 using Tapatalk
I purchased an unlock code. I entered it and it shows it as being unlocked.
Seems like your phone/imei is blacklisted...query the national blacklist with your imei to get it confirmed
The phone was on T-Mobile's "blacklist", it has since been removed and says that it is ready to be used. The phone still does not read the AT&T SIM card. I am wondering now if the SIM card is locked, or if it is a hardware issue. Thoughts?
I have an unlocked AT&T xt1097 but it won't register my T-Mobile Sim card. It registered for about 3 minutes, got a welcome to T-Mobile text and that was that. My phone number shows up in settings, but it shows I have zero service. I've reset, and rebooted several times to no avail. My sim works in a nexus 6 so it's not the sim. Imei os clean. Does anyone have any ideas what it could be or how I could get it to work with my T-Mobile sim?
When you say unlocked, unlocked Sim or unlocked boot loader?
sim unlock. As far as I know there's no boot loader unlock.
Could it be that the imei isn't in T-Mobile's data base since it's an at&t moto x?
Edit: went and put the imei in to tmobiles imei checker and it couldn't figure out what device it was and if it was okay to use on their network. Now I just need to verify with T-Mobile and see if they can register the imei.
Bl00dRunzC0ld said:
I have an unlocked AT&T xt1097 but it won't register my T-Mobile Sim card. It registered for about 3 minutes, got a welcome to T-Mobile text and that was that. My phone number shows up in settings, but it shows I have zero service. I've reset, and rebooted several times to no avail. My sim works in a nexus 6 so it's not the sim. Imei os clean. Does anyone have any ideas what it could be or how I could get it to work with my T-Mobile sim?
Click to expand...
Click to collapse
did you ever get it to work? i am experiencing the same issue. it connects to my friends AT&T network fine but with t-mobile it just says "cant register" etc,etc.
Change the APN settings
I have had a problem like this with my unlocked phone and AT&T, but when they set it up in the AT&T store they fiddled with the APN settings. I had to do the same to get my wife's unlocked Lumia 635 to work on the T-Mobile network. Try the values used in the link attached and see if it works.
http://www.4gtricks.com/2013/04/t-mobile-4g-apn-t-mobile-4g-apn-settings.html
Att motox on tmobile
Reireichan said:
did you ever get it to work? i am experiencing the same issue. it connects to my friends AT&T network fine but with t-mobile it just says "cant register" etc,etc.
Click to expand...
Click to collapse
.
I was able to connect to tmobile network some times, able to make calls. No data connection at all. I played with APN settings and everything else. any help..?
I have an unlocked ATT x1097 and it works just fine with tmobile.
You just have to MAKE A NEW APN SETTING.
When you put a tmobile sim in it, it will automatically create a couple of T-MOBILE apn settings. Just leave that as is and create a NEW APN SETTING with same info you can find from Google. Select that as your data apn. And reboot the device for the best result. It should fixed the problem.
For those of you whose sim does not register into tmobile network; i think it could be one of the following reasons:
1. Original ATT modem does not work well with tmobile frequency in your area
2. The device is locked (stolen, non-payment, etc)
3. The device is broken
4. Your SIM card is damaged
As long as you are at the home screen with tmobile sim, your phone is GSM UNLOCKED, and it iwill never lock again.
keoaloha said:
I have an unlocked ATT x1097 and it works just fine with tmobile.
Click to expand...
Click to collapse
Where did you get it unlocked?
keoaloha said:
I have an unlocked ATT x1097 and it works just fine with tmobile.
You just have to MAKE A NEW APN SETTING.
When you put a tmobile sim in it, it will automatically create a couple of T-MOBILE apn settings. Just leave that as is and create a NEW APN SETTING with same info you can find from Google. Select that as your data apn. And reboot the device for the best result. It should fixed the problem.
For those of you whose sim does not register into tmobile network; i think it could be one of the following reasons:
1. Original ATT modem does not work well with tmobile frequency in your area
2. The device is locked (stolen, non-payment, etc)
3. The device is broken
As long as you are at the home screen with tmobile sim, your phone is GSM UNLOCKED, and it iwill never lock again.
Click to expand...
Click to collapse
Just wanted to say thank you. My T-Mobile SIM wouldn't connect and I even went to the T-Mobile SIM store to get a new SIM Card but it didn't help. As you stated, adding a new APN setting was the only thing that worked.
For those of you who want to unlock your Moto X, I purchased a code on eBay for about $8 and received it within 6 hours. I would post the link but I'm afraid it might be considered spam.
What type of data signal are you getting? LTE?
keoaloha said:
I have an unlocked ATT x1097 and it works just fine with tmobile.
You just have to MAKE A NEW APN SETTING.
When you put a tmobile sim in it, it will automatically create a couple of T-MOBILE apn settings. Just leave that as is and create a NEW APN SETTING with same info you can find from Google. Select that as your data apn. And reboot the device for the best result. It should fixed the problem.
For those of you whose sim does not register into tmobile network; i think it could be one of the following reasons:
1. Original ATT modem does not work well with tmobile frequency in your area
2. The device is locked (stolen, non-payment, etc)
3. The device is broken
4. Your SIM card is damaged
As long as you are at the home screen with tmobile sim, your phone is GSM UNLOCKED, and it iwill never lock again.
Click to expand...
Click to collapse
Yes, LTE and 4G
keoaloha said:
Yes, LTE and 4G
Click to expand...
Click to collapse
Nice. Where did you get your unlock code?
I don't know about OP but I have always used swiftunlocks and have had great luck. Got my N6 from ATT unlocked through them without issues as well.
http://www.swiftunlocks.com/unlock/motorola-at-t-tmobile-worldwide
I noticed that sometimes phone picks up apn without issues and sometimes you have to restart so I just restart every time I make a change to be on the safe side.
Just in case anyone else has the same issue as OP, you should use the
Code:
epc.tmobile.com
APN, NOT the
Code:
fast.tmobile.com
one.
The fast.tmobile.com one would not let me register on the network. epc one did immediately.
Bl00dRunzC0ld said:
I have an unlocked AT&T xt1097 but it won't register my T-Mobile Sim card. It registered for about 3 minutes, got a welcome to T-Mobile text and that was that. My phone number shows up in settings, but it shows I have zero service. I've reset, and rebooted several times to no avail. My sim works in a nexus 6 so it's not the sim. Imei os clean. Does anyone have any ideas what it could be or how I could get it to work with my T-Mobile sim?
Click to expand...
Click to collapse
Hey, I know this post is kind of old but I am currently having the same problem with my moto X 2014 going from At&t to T-Mobile, were you able to get it fixed and if you did, what did you do?
Any luck? I've just come accross the same issue. Got phone unlocked, and bought a new sim and activated. I'll get like 3-4 minutes of service randomly here and there, but about 99% of the time no service. Tried multiple variations of APN settings that I've found online. No luck
Fixed all my seriously annoying connection problems by flashing the 4.4.4 modem.
http://forum.xda-developers.com/showpost.php?p=61208627&postcount=5
I just gotta upload the 4.4.4 modem from my pc, will do that later for you.
edit: https://www.mediafire.com/?4ydw34c4bjxk423
thorasaurus said:
Just in case anyone else has the same issue as OP, you should use the
Code:
epc.tmobile.com
APN, NOT the
Code:
fast.tmobile.com
one.
The fast.tmobile.com one would not let me register on the network. epc one did immediately.
Click to expand...
Click to collapse
Neither one works for data... Just got it unlocked from swiftlocks and I can get voice, but no data :crying:
Someone help!! ...plz
Anyone ?? T-Mobile reps are mostly useless, and keep telling me that my device may have been ' re-locked ' to AT&T after a hard reset !! I know that's not the case because I've thrown in a Vodafone sim and it recognized it ! The sim unlock was purchased from SwiftUnlocks and the phone took it in one try w/o any issues!
Now, I can't even get voice to work... All I see is ' No Service ' and when manually trying to register with T-Mobile, it says ' unable to connect to the T-Mobile network. Please try later '
Someone please help out!!
I have a rooted Note 9 SM-960f/ds I was using on verizon and I went to switch to a Tmobile sim card and it's asking for a sim network unlock pin. I didn't set one up nor should it be locked to verizon.. to I need to unroot and do a factory reset for it work.
stark21 said:
I have a rooted Note 9 SM-960f/ds I was using on verizon and I went to switch to a Tmobile sim card and it's asking for a sim network unlock pin. I didn't set one up nor should it be locked to verizon.. to I need to unroot and do a factory reset for it work.
Click to expand...
Click to collapse
I had something similar with T-Mo iPhone when my phone was roaming on ATT due to poor T-Mo coverage. When I returned to T-Mo coverage (even rebooted phone) it still didn't work. I had to call T-Mo & they provided me with a SIM-specific unlock code. Such a bunch of crap to go through.
Good luck.
Sent from my SM-N975U using Tapatalk
stark21 said:
I have a rooted Note 9 SM-960f/ds I was using on verizon and I went to switch to a Tmobile sim card and it's asking for a sim network unlock pin. I didn't set one up nor should it be locked to verizon.. to I need to unroot and do a factory reset for it work.
Click to expand...
Click to collapse
the f devices shouldnt be carrier locked, at least not for USA carriers. Are you sure its not talking about a sim card lock? if ti is, many sim cards pins are 0000, 1234 etc etc, but you only get 3 tries before it locks it down and you will probably have to get a new sim as that usually burns the sim (not literally burn, its just the term we use as salespersons of cellular service when a sim is no longer usable for a multitude of reasons)
ZeroXO fixed my phone I guess it was somehow network locked and it was a hex edit that was wrong. but he fixed it and all is good