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
Motox on at
I just bought this phone off of someobr , it is a ATT phone. Says this on the back and in settings and at confirmed with the imei that it was. But when I enter a att Sim it prompts "Sim network unlock PIN" as if I'm trying to insert a Sim from a different carrier
Any ideas?
Hey I for some unknown reason cant connect to my network whatsoever. No 3rd party roms nothing just the most recent Lolipop update. Sim card is in lock screen says emergency calls only. Network operators all options are greyed out. Here is the weird part. Under APN's it tells me there is no sim card when the screen loads, however when i eject the sim card and put it back in its not until i eject it that the rest of the phone recognizes there is no sim card. Did my sim card fry or what do you think?
Some answers found solo
so i pulled an app off play to check the info of my sim card and lo and behold there appears to be nothing on the card whatsoever. anyone have a suggestion for an app that is known to be current and working for this just in case its the app?
Pawnrae said:
Hey I for some unknown reason cant connect to my network whatsoever. No 3rd party roms nothing just the most recent Lolipop update. Sim card is in lock screen says emergency calls only. Network operators all options are greyed out. Here is the weird part. Under APN's it tells me there is no sim card when the screen loads, however when i eject the sim card and put it back in its not until i eject it that the rest of the phone recognizes there is no sim card. Did my sim card fry or what do you think?
Click to expand...
Click to collapse
Simplest would be to go in store and ask another sim card just to test it. Looks like a bad sim card or maybe an hardware problem with the sim contacts
Hey guys, out of nothing, my phone stop having signal, and start saying "No service" in the left top corner, where it used to be my mobile phone company, Claro. Then, I tested with other sim cards and the thing keep going the same, no signal in SIM 1. Then I put my sim card in slot 2, and it worked perfectly. Bad part is, I can't put a micro sd now, because I'm using that slot to put my sim card.
I reseted all "network" functions, I'm sorry, I don't know how is it in English phones, but I went to the option of reset all network settings, or something like that. That didn't work. I just lost all of my wifi passwords.
I've seen some carriers blacklist IMEI if device is not being paid on time. I once got scammed like that on a Note 9, and the sim 1 slot with imei 1 did not work, but the carrier did not block SIM2/IMEI2 so i could at least use the phone until the seller finally agreed the return process.
Try checking imei for blacklist status, and try reflashing the firmware with odin (all files including BL, AP, CP, and CSC)
Have an used Pixel 5 here which was labeled as sim locked (carrier unknown ). I'm not sure if it really has sim lock or if the mobile connection is defective. When I insert my SIM it asks for the PIN and then the correct carrier is shown under network settings - there is no signal however.
How can I make sure it has sim lock and it's not a HW defect?
If it's locked - is there a way to find out the carrier which it is locked by?
More general - how is a sim lock indicated to the user when inserting a sim from another provider?
I've sent the phone to google for repair (Connectivity problem). They stated that no defect was found which would support the sim lock theory. Is there a way to know for sure?
If Google Repair team says there are no defects (assuming the team that handled it were competent), then it most likely is a carrier locked phone. I've never used a locked phone before so I'm not sure what to look for but if you can find out which carrier it's locked to, you could try inserting that carrier's sim card?
If you get a signal, then swap out the sim card to a different carrier and if it doesn't work, then it's definitely locked.
I don't know which carrier it could be looked to and how to find that out. When I enter the IMEI at the start of the repair process in the google store the device is identified as "Pixel 5 (128 GB, Just Black, without SIM-Lock)".