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How to enable Tmobile AWS bands on AT&T S5

Right now I'm using the SM-G900A on Tmobile, before I used to have the SGH-I337 S4 and there was a mod to enable the Tmobile AWS bands on that phone, so my question is there any way that we can do the same thing with the S5?

Qualcomm Band Frequency Unlocking

hi,
has anybody tried unlocking their phone for other band frequencies to work? i found threads on other phones equipped with qualcomm being able to do that, some were also able to do it on verizon m8.
i live in the philippines, and umts coverage is not so good, so i want to unlock some gsm / wcdma bands to get better covergage. unlocking lte bands would also be good.
tried unlocking wcdma bands, but after the unlock, my phone says i dont have a sim card, and i'm stuck at that.
thanks

[Q] LTE 1800MHz Band 3 For SN3 SM-N900A?

I recently bought an AT&T Note 3. I have 1800MHz LTE Service in my area but SM-N900A doesn't have that band support. Any way to enable it? I know it is a long shot but still I have to try.

[Q] LTE Band

I read the specs for SM-G925V and the bands for LTE are: LTE Cat6 700/800/850/1900/1700/2100 (Bands 2,4,5,13,26).
Is this blocked in hardware or software?
In Brazil we use others bands and my carrier uses band 7. i got this phone as a present, so there is any workaround?

lehmevieira said:
I read the specs for SM-G925V and the bands for LTE are: LTE Cat6 700/800/850/1900/1700/2100 (Bands 2,4,5,13,26).
Is this blocked in hardware or software?
In Brazil we use others bands and my carrier uses band 7. i got this phone as a present, so there is any workaround?
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If it will be the same as on S4 and S5 it should be possible. Please look at http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
And according to the spec it seems that it should have all listed bands http://www.phonescoop.com/phones/phone.php?p=4716

Did anybody get any further with this issue?

Is this even possible? Flash AT&T RUU on the Verizon branded S6 Edge?

Is this even remotely possible? To RUU an AT&T official rom to the Verizon branded Edge?
I think I have this figured out and from what I have found.. locked bootloader will prevent this.. So that's that.. But I am having an issue with LTE.. I'm not getting LTE .. just HSPA or whatever it is.. H+ is displayed on my phone.. I know this should work in theory as my phone should support this..
AT&T states they run LTE on bands 2/4/17 ... The phone says it operates within LTE Band 13/4 (700/1700 MHz)
From AT&T itself .. LTE uses Band 17(700Mhz), Band 5(850Mhz), Band 2(1900Mhz), Band 4(1700/2100Mhz)
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