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TMO rom /w LTE support

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rishidhar
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Default TMO rom /w LTE support

I'm in a real pickle. I have a AT&T (I747) S3 that's capable of LTE. I've flashed several T-mobile rom's on it and everything seems to work except I don't get an option to choose LTE in the Mobile Networks. I assume this is because T999 did not have LTE but T999L did.

Are there any roms that are touchwiz (I need wifi calling) and also support LTE?

Thanks folks!
 
tokenpoke
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Um... Why haven't you tried at&t ROMs if you don't have a t999* device anyway?

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rishidhar
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Because AT&T roms don't have Wifi-Calling feature. I should have clarified T-Mobile is my carrier.

I was able to figure this out. I downloaded this 4.3 Stock deoxed ROM for T999L and I was able to get everything working. Now onto theming it like an S5. Unfortunately majority of the custom roms out are for the T999 and don't support LTE. http://click.xda-developers.com/api/...p%3C%2Ffont%3E

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Um... Why haven't you tried at&t ROMs if you don't have a t999* device anyway?

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tokenpoke
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Well then, that makes a huge difference, lol.

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serio22
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T999 ROMs do support LTE, but you won't see the option for it, as long as you select auto it will connect to it

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rishidhar
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Huh I'll look into that then! Thanks!

Rishi
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T999 ROMs do support LTE, but you won't see the option for it, as long as you select auto it will connect to it

Sent from my SGH-M919 using Tapatalk
 
rishidhar
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I still can't seem to get LTE on this AT&T S3 (/w AWS enabled). In the same area I'm able to pickup LTE on another AT&T S4 (/w AWS enabled). I'm able to pick up Edge and HSPA+ on both.
 
rishidhar
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UPDATE: I was able to connect to LTE but I had to force the phone to use LTE Band 4 using *#BAND#. I was not able to make any calls at this point since it was the modem was running LTE only.

I then moved the modem to Automatic and the LTE remained and I was able to make some calls but on ending them, it went straight to Edge instead of HSPA+ or LTE.

The switch over between Edge to HSPA+ / LTE doesn't seem as smooth as the S4 and sometimes it just doesn't switch and sticks to Edge.

Ideas?
 
DocHoliday77
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People have been trying to do this for a while and it is something I believe just isnt going to work. The I747 was built to use a specific set of frequencies on AT&T networks. T-Mobile uses different frequencies/bands and the I747 simply cannot make proper use of them. There's threads in AT&T forums about this. You should check them out.
 
serio22
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I used an I747 before with T999 ROMs and had no problems connecting to LTE once I used the correct APN, can you please state what APN you are using?

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