Whhy can't i connect to 3G while roaming in the U.S. on AT&T?

[#1]

I bought my Xperia Arc in Singapore and have no problems getting on to the 3G network there or while roaming in other asian countries like Hong Kong and even Australia. But, while roaming in the U.S. on AT&T, i can only get on to 2G and Edge at best. I can't even see 3G networks as an option when scanning for available mobile networks. With an iphone and ipad, i can see and get on to the 3G network.

Can someone help?

[#2]

The reason you cannot get on the AT&T 3G network is because your phone model is a LT15i model which does not support the AT&T 850MHz UMTS/HSPA(3G) network.

The North American version is LT15a, which has the additional support for the 850MHz UMTS/HSPA network.

Rogers, Canada also uses the LT15a model

[#3]

I know this sucks but unfortunately SE does not have a truly universal phone like the iPhone which supports all the 2G/3G networks.

[#4]

This information is also stated on the SE website in the specification section

GSM/GPRS/EDGE 850/900/1800/1900
UMTS/HSPA 800/850/1900/2100
UMTS/HSPA 900/2100

Note that UMTS/HSPA network compatiblity varies between locations.

North American version :

GSM/GPRS/EDGE 850/900/1800/1900
UMTS/HSPA 800/850/1900/2100

Others

GSM/GPRS/EDGE 850/900/1800/1900
UMTS/HSPA 900/2100

[#5]

thanks. This is so disappointing.. i was loving this phone until now.

[#6]

I can imagine that. I would not want to be in your situation. :smileysad:;

I suppose if you still like the Arc. There is the Arc S coming out or better still the Duo (1.4GHz Dual Core CPU)

[#7]

Thanks. Any idea if the Duo or Xperia Pro have the same issues i am facing?

[#8]

They would not have a problem provided you purchase the North American versions.

[malaugh]

FYI.  I have the USA version (SK17A) and it works great on the AT&T 3G network