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
I have a locked tmobile htc one and bought a tmobile compatible sim from ST. I also acquired my specific unlock code but when I put the new sim in, the prompt to unlock does not appear. AND after I enter new APN, I cant delete the stock tmo APNs and the the phone keeps defaulting back to tmo APN.....
I get phone and MMS but no email or internet. HOW CAN I ENTER MY UNLOCK CODE???
thanks for any help or suggestions.
You need to put in a non T-Mobile sim for the network unlock prompt to display.
thank you, but now....
rumon said:
You need to put in a non T-Mobile sim for the network unlock prompt to display.
Click to expand...
Click to collapse
I cannot get rid of TMO APNs.....the APN manager apps all say cant change android 4.0+. I have phone and text but no data, or email....
I know if I put in another carrier Sim it will bring up the Sim unlock screen but how do I bring it manually?
N-920C Region lock asks for Sim network pin.
I purchased Note 5 model N-920C from Saudi Arabia but when I came back to India with an Indian simcard it asks for Network Sim Pin and if I discard it says invalid sim card or network locked sim card inserted.
Can anyone please help..
Thanks in advance
i have the same prob... anyone pls help
Saudi phones are region locked to prevent theft and black market sales. In order to unlock it you should insert a Saudi SIM like zain, stc or mobily and place a 5 minute call (whilst in saudi).
Sent from my One using Tapatalk
I bought my phone too in Saudi online but my sim works from my country in Philippines.. I did some tweaks on my phone but when I flashed a stock rom, it now asks for a network pin unlock ?. Help! (I don't know how to start a thread ?)
You have basically 3 options here to get rid of the region lock.
1. get a SIM from the country the phone originates from. Make a 5/6 min call to a mobile number. That should remove the region locking after this you should be able to use any SIM you like.
(note) You must call a mobile number from the phone and NOT a landline. And secondly if You do this procedure from outside the home country of the phone that call will be considered to be a roaming call and will cost more than a regular call.
This procedure is intended to be done to activate a phone with a local SIM while STILL in the country of origin and may NOT work if the phone was NOT activated with the original SIM of that country. It may be possible to still make this work by performing a factory reset and using the correct countries SIM card and performing the above procedure.
2. Look for one of the many phone unlocking web sites that offer a regional unlocking code and buy that code. (Note) the region unlocking code and the network unlocking codes are NOT the same thing so even after you have gotten rid of the region lock you may still have to get a network unlocking code if the original network operator has locked the phone to their network.
The code you need is the RGCK unlocking code. You maybe able to also get this code from the Samsung agent for the region the phones is from.
3. Speak to Samsung for the region that the phone was sold and intended to be used in. You maybe able to also get the RGCK unlocking code from the Samsung agent for the region the phones is from.
(note) this option will may require that you return the phone to Samsung for that region and they can remove the lock. This is likely the most costly option.
I hope that this info is of use to you guys.
I got the unlock code off ebay. When I put a verizon postpaid sim in I just get a webpage for phone locked, when I dial #786074* I just get a voice prompt saying device is not active. How do I unlock?
Ok, found it! from settings: wireless & networks:
well, I can't find it again. I think it goes away once I unlock it. But there was an option in there to change network carriers and that brought me to the unlock screen.