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[Q] AT&T S4 Active - use T-Mobile and want Wi-Fi calling

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lanwarrior
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Default [Q] AT&T S4 Active - use T-Mobile and want Wi-Fi calling

As the subject stated, I have AT&T version of the Galaxy S4 Active. The phone is unlocked (code provided by AT&T) and now I have a T-Mobile SIM card.

I want to do Wi-Fi calling, but couldn't find any information in this forum or when Googling it.

Can anyone provide step-by-step information on this? Preferably, I don't want to install a custom ROM - I use stock ROM (rooted) and it has been stable so far.
Galaxy Note 3 T-Mobile
Stock ROM - rooted
Official Jelly Bean 4.3

Note 10.1 (2014)
Stock ROM - Not rooted since KNOX tripping
Official KitKat 4.4.2

Retired
Nexus 5
Nexus 7 (2013)
Galaxy Note 8.0
Nexus 7 (2012)
AT&T Galaxy Note
AT&T Galaxy S4 Active
 
Devo7v
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Quote:
Originally Posted by lanwarrior View Post
As the subject stated, I have AT&T version of the Galaxy S4 Active. The phone is unlocked (code provided by AT&T) and now I have a T-Mobile SIM card.

I want to do Wi-Fi calling, but couldn't find any information in this forum or when Googling it.

Can anyone provide step-by-step information on this? Preferably, I don't want to install a custom ROM - I use stock ROM (rooted) and it has been stable so far.
Check this thread for T-Mobile WiFi calling ( http://forum.xda-developers.com/show....php?t=2302313). You've got two things working against you though. First you have the AT&T version of the phone, so ours locked down and you can't fully flash ROMs to the phone. You can use SafeStrap to flash ROMs but because of the bootloader being locked your stock with the stock kernel. Second, nobody has got T-Mobile WiFi calling working on non T-Mobile ROMs. So basically you can't do it with the phone you've got.
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lanwarrior
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Thanks for the detailed information. Looks like it's not doable given the locked boot loader. :sly:
Galaxy Note 3 T-Mobile
Stock ROM - rooted
Official Jelly Bean 4.3

Note 10.1 (2014)
Stock ROM - Not rooted since KNOX tripping
Official KitKat 4.4.2

Retired
Nexus 5
Nexus 7 (2013)
Galaxy Note 8.0
Nexus 7 (2012)
AT&T Galaxy Note
AT&T Galaxy S4 Active
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