Carrier sim lock - Sony Xperia T, TL, TX, V

Ha there.
Is it possible to remove Carrier sim lock on the phone by any mod, rom or app??
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No, contact your carrier to request a sim unlock. Most carriers will do this for free, or charge a little amount after your contract is done. If your contact still runs, you will probably need to pay extra.
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Related

T mobile tab unlocked getting horrible service on att.

Like the title says. T mobile tab flashed over to euro rom to allow phone access.
I put my att sim in and it says att in the notification bar says att but i get little to no service. If it does get edge it dissapears a second later. Could this possibly be because of a bad unlock if that exists.
A side note. I am using a new 4g att sim in the tab would that make a difference
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You did not mention if you checked the APN settings. I am not sure if the TMOUS AWS band is the problem on ATT.
Sorry, yes i did check the apn settings. But would the tab still show att if it wasnt unlocked. Maybe my unlock didnt take.
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And just to add some info. When i first put my sim in it took a while to get service then it started to junp around frequencies. Edge then gprs then hsdpa and now nothing
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Figured out the problem the unlock did not take
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infuse4g said:
Figured out the problem the unlock did not take
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Click to expand...
Click to collapse
You do relize that Edge speeds will probably be all you get for data FYI.
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You will not get 3G since att 3G operates at a different frequency than tmobile. However you should be getting edge.
I am having the exact same problem with the unlock ? How did u get it to work exactly

Sim question

I am assuming to get a go phone sim to work it has to be from a prepaid smart phone? I had one from a regular phone but it says to insert sim card even after i put in in several times. Any help?
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Help anyone?
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Network lock

Is there an easy east to see if my 3 mobile XZ is locked to the network without using another SIM? I know the bootloader is locked.
Thanks
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[Q] Phone Locked Update to 8.1

Is it safe to install the developer preview eventhough the.phone is in a contract on a certain telco? Does.it. Not affect the signal functionality?
Or it is only applicable to open line phones??
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gianchan19 said:
Is it safe to install the developer preview eventhough the.phone is in a contract on a certain telco? Does.it. Not affect the signal functionality?
Or it is only applicable to open line phones??
Sent from my C6603 using xda app-developers app
Click to expand...
Click to collapse
Since you don't flash the Radio ROM, but only the OS itself, it should work.
Ah ok.. But is there a way that the phone can be sim unlocked?
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Screen lock

Won't let me take off my password! Please help.
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It seems your phone is configured this way by AT&T. Your only chance is to somehow use some third party app in order to trick the system or to root your phone, but void your warranty.
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