US htc touch diamond unable to roam?

[fighteroffoo5]

I bought the US version of the HTC Touch Diamond a couple of weeks ago. It works perfect in the US with 3G enabled on the ATT network.

However, I'm currently out of the country in Belgium and I can't get it to register onto the local GSM network. The phone finds multiple valid GSM networks.

I checked the GSM coverage maps and the networks are on the 900/1900 bands which this phone should be able to configure.

Here are the versions for my phone:

Radio 1.00.25.08
ROM 1.93.422.4 WWE
ROM date 08/13/2008
Protocol 52.33a.25.17W

[Davey101]

Check with your service provider to see if roaming is permitted with your contract. They may be able to enable it for you if you ask them. :)

[fighteroffoo5]

thanks, ill check with my service provider. under the bsnd tab i only see 850/190 gsm and 850/1900 umts. are the only radio bands nothe i can manually configure unless i flash to another radio nbh file
?

[tzour]

you do need to ask ATT to
"turn on" international roaming @5.99/mo. This is not automatic even if you have enrolled in the unlimited data plan in the US.

Choose AUTO on the band settings for the phone and ignore the two default numbers shown. More numbers can be added and shown on the list but AUTO will find most suitable(including all available in your locations) for you.