Database Develop

[Q] Xperia TL LT30at with at&t bad IMEI unlocking

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

please help 4g lte will not work as sim/uicc is removed , no service and no sim card

helo, i have htc 510 sprint and can use with carrier provider in my country indonesia, Smartfren, but when flashed with other rom, my sim card no detected and show 4g lte will not work as sim/uicc is removed etc. in setting theres no service provider, in network there is unknown operator name, 0 signal strenght, unknown mobile network type, out of service state an not roaming,
Now in Raptor v1 rom, all work except simcard not detected
can i get back to use my sim card again..?

riskan said:
helo, i have htc 510 sprint and can use with provider in my country indonesia, Smartfren, but when flashed with other rom, my sim card no detected and show 4g lte will not work as sim/uicc is removed etc. in setting theres no service provider, in network there is unknown operator name, 0 signal strenght, unknown mobile network type, out of service state an not roaming,
Now inRaptor v1rom, all work except simcard not detected
can i get back to use my sim card again..?
Click to expand...
Click to collapse
You need to ask your carrier what their APN is and then set it on the phone..

MrMike2182 said:
You need to ask your carrier what their APN is and then set it on the phone..
Click to expand...
Click to collapse
i set my APN from my carrier in my phone ,then save but nothing saved. NO APN, see my attachment,
in attachment number 1 No Sim card
in attachment number 2, it should be read as sprint carrier although i use other carrier
in attachment number 3 and 4 i set APN from my carrier then i save but nothing saved, no APN
in attachment number 5 the phone number is not mine, when dial *#*#4636#*#*

riskan said:
i set my APN from my carrier in my phone ,then save but nothing saved. NO APN, see my attachment,
in attachment number 1 No Sim card
in attachment number 2, it should be read as sprint carrier although i use other carrier
in attachment number 3 and 4 i set APN from my carrier then i save but nothing saved, no APN
in attachment number 5 the phone number is not mine, when dial *#*#4636#*#*
Click to expand...
Click to collapse
You need to go back to the stock rom you had before.

MrMike2182 said:
You need to go back to the stock rom you had before.
Click to expand...
Click to collapse
still not work bro, still no network provider, still no sim card etc,

Xperia Z3 D6603 SIM Service Provider Lock?

Opened a brand new Sony phone, put in Sim Card. After opening Android logo, an MTS logo with blue font and white background pops up. Then it simply states "SIM service provider unlock PIN.
I called MTS in Canada, they have no record of the IMEI number. I called Sony, they told me to **** off 'cus I'm out of warranty. All I want to know is who my bloody provider is, so I can get this thing unlocked. I called T-mobile UK, Verizon, T-mobile US, numerous others and they told me they cannot explicitly state if the phone was ever used with their service.
I am extremely confused, I wanted to use an unlocking site, but alas. I entered *#*#7378423#*#*, went to Service info and then Sim lock. It was as follows:
[] Network 0
[] Network subset 0
[x] Service Provider 5
[] Corporate 0
[] Sim 0
I am wondering if anyone can give me any idea what is going on? My IMEI # has no problems, it is: 35518806-270203-4.
I am not sure how to proceed and get this working. I entered a T-mobile US sim card. Please Help.

Sony Xperia E1[D2005] sim network Hardlock

Due to 5 remaining attempt [x]= 0 my phone sim network is hardlock how can I unlock it with software or any other solution?

Sim Unlock

Hi Guys,
I have a Note 8 and I had it sim unlocked thru an online service. I was a bit dissapointed when I found out that I was only able to use my sim 1 as call and text only like the sim 2 slot after the unlock and I could not use it for data 4G. The tech guy from the sim unlocking service told me its with the software of my phone from the original carrier that has not allowed me to use data on 2 sim slots except its original carrier. Can anyone please help me how to fix and enable 4G to work on either yhe 2 sim slots?
Thanks very much!

I don't think that is carrier related at all, even my unlocked/international version only allowed 2g/3g in the second sim slot

j_hansen said:
I don't think that is carrier related at all, even my unlocked/international version only allowed 2g/3g in the second sim slot
Click to expand...
Click to collapse
What about sim slot 1 I had it sim unlocked but when using other network I could not use 4G data butbonlu can use call and text

Bluepeach7 said:
What about sim slot 1 I had it sim unlocked but when using other network I could not use 4G data butbonlu can use call and text
Click to expand...
Click to collapse
Check that your APN settings are correct for your provider.

I would imagine sim 1 would allow 4g from any carrier as long as you have a 4g sim card/plan