UK SII in USA using T-Moblie, it works great but no 3G or 4G. how can I fix this?

[copajoe]

I just purchased the Samsung Galaxy S2 and I found out the hard way that these UK imports are not the same.

Samsung US will only sometimes support it and so with this problem they told me to contact the UK.

Does anyone know the settings I must use to access the 3G/4G network that is available on T-Mo USA?

For whatever reason, all I get is EDGE which is a dinosaur, slow and old. I want this beauty of a phone t access everything it can!!!

Please help!

thanks

[Tufftoad]

You'll probably need to flash the US firmware which has the right frequency for your country. Best go to Samfirmware.com and flash new firmware, they have guides and all you'll need. You'll have to sign up though.

[Doomed]

There isn't a firmware there for USA for some reason

Only for Chile, New Zealand, Australia and Brazil. Check your provider frequencies with those country's to see which is the best match

My Money is on Australia (This is a total wild guess, because I was thinking of shrimp on a Barbie)

[copajoe]

I have no idea what you guys are talking about!

[Doomed]

Read the SGS dictionary on this forum. Then check up on the one for flashing and odin

Then read up on how to flash the SGS EyeEye.

After this, find out what mhz (I think ie: 800mhz) your network uses for phone calls and which one it uses for data. Then find out what other countries use the same setup

Definition of "frequency band"
Frequency bands are groupings of radio frequencies that are used by mobile networks to communicate with mobile phones. The frequency bands that a phone supports determine to a large degree where and on which networks it can be used. For example, T-Mobile USA uses the 1900MHz band for its GSM network, while AT&T uses both 1900MHz and the newer 850MHz frequency bands. Europe and most of the rest of the world use the 900MHz and 1800MHz frequency bands for GSM. So for a device to work properly on T-Mobile USA as well as work in Europe, it would need to support the 1900MHz band and one or both of the 900MHz and 1800MHz bands used in Europe. A tri-band device supports 3 different bands, while a quad-band device supports 4.

[Doomed]

Read the SGS dictionary on this forum. Then check up on the one for flashing and odin

Then read up on how to flash the SGS EyeEye.

After this, find out what mhz (I think ie: 900mhz) your network uses for phone calls and which one it uses for data. Then find out what other countries use the same setup

Definition of "frequency band"
Frequency bands are groupings of radio frequencies that are used by mobile networks to communicate with mobile phones. The frequency bands that a phone supports determine to a large degree where and on which networks it can be used. For example, T-Mobile USA uses the 1900MHz band for its GSM network, while AT&T uses both 1900MHz and the newer 850MHz frequency bands. Europe and most of the rest of the world use the 900MHz and 1800MHz frequency bands for GSM. So for a device to work properly on T-Mobile USA as well as work in Europe, it would need to support the 1900MHz band and one or both of the 900MHz and 1800MHz bands used in Europe. A tri-band device supports 3 different bands, while a quad-band device supports 4.

SGS2 Network bands

2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100

[jyinger]

I have the same exact question: UK version of Galaxy S2 working (great) on T-Mobile, but no access to either the 3G or 4G network. Edge works, but slow........

Will firmware flash work to give us 3G/4G connection?

Thanks

[copajoe]

t-mobile uses the 1700 band which this phone does not have. after extensive looking, it is out of the question, we will never get 3g on t-mobile with a UK phone, when it comes to the US market, well, that is a different story, if you then want to get another sII!!! I am switching over to AT+T, reluctantly..... (but I have also confirmed it WILL work in Brazil on Tim, Oi, Claro and Vivo! yahoooooo!!!!