Help Changing settings on htc desire Hd to get signal from tmobile and orange?

[joeybradezz]

I have just got my new HTC and I have got all the texts and everything saying I can use mobile now as well as orange but It said I may need to change setting so I am able to change to t-mobile when necessary, but I don't know how, any help, thanks

 

[Nozspark]

My Desire does the T-mobile/Orange switch without any intervention... I didn't have to alter any phone setting or anything!

It will only "roam" to T-mobile from Orange when you have no Orange signal

 

[joeybradezz]

My Desire does the T-mobile/Orange switch without any intervention... I didn't have to alter any phone setting or anything!

It will only "roam" to T-mobile from Orange when you have no Orange signal

In the settings>wireless & networks>mobile networks
Is your data roaming option ticked?

 

[Nozspark]

Strangely I have "Data Enabled" and "International data roaming" ticked, but not "National data roaming"...

weird eh??

I'm turning off "International......" now