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Akbar
Nov 22, 2004

Hubba-
Hubba.
I posted this in the general phone thread but maybe I can get some answers here.

Akbar posted:

I have a question about porting carriers so I figured maybe it fits here. I have an HTC One M7 that is out of contract with CREDO Mobile, a MVNO that runs on Sprint. My family decided they wanted to try out T-Mobile because they wanted GSM phones.

To my knowledge, the HTC One M7 is a dual CDMA/GSM world phone so I figured I could get it carrier unlocked and use it with a T-Mobile SIM. I researched around a bit and found that others online who had done the same said that voice/text connects fine but I wouldn't be able to get 4G mobile data, which I thought was acceptable

Now I'm in a pickle where CREDO/Sprint claims the phone is unlocked but the device won't recognize the T-Mobile SIM and I can't connect to a GSM network (I get a "Invalid Card - Please contact customer care" notice). T-Mobile says the SIM is activated on their end and that it's a device/unlock issue. CREDO/Sprint claim it's as unlocked as it gets and they can't/won't do anything more. They also provided me with an MSL code when I asked for the unlock but neither I nor the T-Mobile reps know what to do with it. Any ideas?

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Akbar
Nov 22, 2004

Hubba-
Hubba.

goku chewbacca posted:

Sorry, but you're boned. The Sprint One M7 is not Domestic SIM unlock-able. It can only be unlocked for foreign carrier SIMs.

Scroll down the the table at the bottom:
http://www.sprint.com/legal/unlocking_policy.html#!/

That MSL code allows you to "flash" or manually reprogram it for other CDMA carriers, but not a GSM carrier that uses SIM cards.

Dag. Thanks for the helpful information, though. Guess I'll put this on ebay or something. What's the going rate for a CDMA-unlocked 32gb HTC One M7 in good condition?

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