CTPAHHIK

Three - Feel at Home – Roaming in US

Phone: Samsung Galaxy Note II N7105
GSM 850 / 900 / 1800 / 1900
HSDPA 850 / 900 / 2100 - N7105
LTE – Irrelevant – N7105 doesn’t support US LTE

When traveling to US you are able to roam on AT&T and T-Mobile networks.
If your phone doesn’t have 1700Mhz band (most phones do not) you will not get 3G signal. This is a tutorial how to force your phone into 3G.

Three preferred roaming partner is T-Mobile. T-Mobile 3G runs on 1700Mhz band and phone will not have 3G signal, because 1700Mhz is not supported by most European phones. Phone will always get stuck on 2G. If your phone has 850Mhz 3G band you can get 3G by roaming on AT&T, but it will not happen by itself. You need to set your phone into 3G/WCDMA mode only and turn off 2G radio completely. At this point phone will only see AT&T network and register on it. Setting AT&T as preferred with 2G on doesn’t always work and phone eventually switches back to 2G T-Mobile.

Most Useful Answer spruceyb  Apr. 4, 2014 at 21:33

If you've got a Xperia Z1, you'll get 4G.
That phone has crazy amounts of bands!

Also, LG G2, Galaxy S4 & Note 3 will let you get 3G on T-Mobile US

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4 comments

matt101101 / MOD  Apr. 4, 2014 at 09:40

Useful tip, cheers :). I'm sure everyone who's on Three and is going to visit the US will be pleased to hear that they can continue to use 3G, despite the US' err... "interesting" network arrangements.

Any idea how good AT&T's 3G actually is? Are we talking Three, O2 or somewhere in between :p?

CTPAHHIK  Apr. 4, 2014 at 14:05

3G AT&T coverage wise around same as 2G on O2. I haven't encountered an area where there is no 3G coverage. Speeds are good for casual use - I don't know how fast, but I didn't have any complains.

spruceyb  Apr. 4, 2014 at 21:33

If you've got a Xperia Z1, you'll get 4G.
That phone has crazy amounts of bands!

Also, LG G2, Galaxy S4 & Note 3 will let you get 3G on T-Mobile US

CTPAHHIK  Apr. 7, 2014 at 07:32

You need 1700Mhz 3G band for T-Mobile. I've seen claims that 1900Mhz will also work, but I wasn't able to confirm it.
Only Nexus 5 and Xperias will work.

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