[Networking] padlad:
There is a small program on this site that will unlock your xda2s, just do a search for it and have a good read about how to do it! As for the settings these are the ones i used, i did not write these, i got them from this site:

STEP 1

The first step is to go into Start > Settings > Connections, and then click on the Connections icon itself.

You should then see a screen, with two main sections, relating to "MY ISP", and lower down, "My Work Network" (don't panic if it says "MMS Network for the lower one - this can be changed by going into the Advanced tab on the lower part of the screen, and choosing from a drop down list).

Start with the "My ISP" section, by clicking on the "Manage existing connections" link.

This will bring a screen up with the existing O2 settings listed. Now this is where you have a choice... You can either set up the orange settings as a NEW set, or you can just EDIT the existing O2 settings to change them to Orange. My instructions are based on a NEW set, which I feel is safer.

So... Click on the word "NEW" and we will work through it.

Firstly, call the connection name "Orange GPRS" without the quotes.

In the "Select a modem" drop down, choose "Cellular Line (GPRS)" <don't miss the GPRS bit there!>

Then we need to click on the "Next" button.

The access point name is "orangeinternet" with no quotes or spaces.

Then click "NEXT" again.

The username, password, domain, can all be left blank, but we need to click the "ADVANCED" button now...

We do not need to alter the TCP/IP settings, but we DO need to alter the Servers, so click on the "SERVERS" tab at the bottom.

Next, click the "Use Specific Server Address" radio button (the second of the two).

And enter the following details:

DNS: 158.43.192.1

Alt DNS: 158.43.128.1

Then click OK, to take you back to the last screen.

And at this point, you can click "FINISH" to create the settings. Well done so far. And then click the OK circle in the top corner, to come out of the "My ISP" settings.

STEP 2

You should now be at the Connections screen, with "My ISP", and "My Work Network" showing. Now we need to click on the "manage existing connections" link under "MY WORK NETWORK" this time, as we have already done the "My ISP" one.

So, click the lower one, "Manage existing connections" and we'll work through this...

A screen will pop up, with the existing O2 WAP network settings shown.

Again, I find it best to create a NEW connection, so click that button now.

Give the connection the name "Orange CSD WAP" (this is the older style dial up one we are doing first, GPRS WAP comes next).

For the modem type, choose "Cellular Line" this time (NOT the gprs version - just simple Cellular Line).

Then. click the "NEXT" button.

Enter the number as "+447973100500" without the quotes, and then click "NEXT"

Right, things get a bit iffy here, because of course, when I went to see what my settings were, the password was asterisked out ****

I THINK I know what it is though, and it seems to both fit and work, so go with my suggestion, but if anyone knows any different, please post it here.

The username is "Orange" without quotes, but I think with a capital O.

The password is "orangemultimedia" all one word, no spaces or caps or quotes - it seems to work for me for MMS (coming later) however, but I never bother with CSD WAP, so haven't put it to a full test.

The Domain can be left blank.

We don't need enter anything more, or any advanced settings, so just click on "FINISH" to complete setting up the older style CSD WAP settings.

We should now be back to the "My work Settings" screen, with your new settings also listed. We need to set up the more usual GPRS WAP now though, so once again, click the "NEW" button to set a new lot up.

Give the connection the name "Orange GPRS WAP" so it's easy to identify, and for modem type choose "Cellular Line (GPRS)" - note the gprs IS chosen this time. Then click the "NEXT" button.

The access point name is "orangewap" all one word without the quotes. Then click "NEXT".

There are no username, passwords, or domain settings to enter, nor any DNS etc, so you can now simply click on "FINISH" to save these settings.

Then you can click the "OK" circle in the corner, to exit the work settings screen.

We are now back to the Connections screen, with "My ISP", and "My Work Network" shown.

We need to set up MMS now, but the screen only shows two connections, so we need to click on the "ADVANCED" tab at the bottom now.

A couple of buttons will now appear, including one that says "SELECT NETWORKS", so click on that now.

Two drop down menus should then appear, and the bottom one will be the "My Work Network" connection. Click on this, to choose instead, "MMS Network", and then click the "EDIT" button to continue.

Now you should see the fairly familiar settings screen, but this time with the O2 settings for MMS or O2 WAP listed.

Click the "NEW" button to continue.

Call the new connection "Orange MMS" without quotes, and the modem type is again "Cellular Line (GPRS)". Then click "NEXT".

The access point name is "orangemms" without spaces or quotes. And then again, click "NEXT".

The username is "Orange", the password I THINK is again "orangemultimedia" all one word, no quotes (if anyone knows different post here, but it seems to work for me).

Once this is entered, there are no advanced settings to configure, so simply click the "FINISH" button to continue on.

You should then be dropped back to the list of MMS settings. Make sure at this point that the new "Orange MMS" item is the one that has the radio button checked.

Now just click the round "OK" button in the corner to continue.

You will be back to the Network Management screen with the two drop down boxes. It is VERY important it seems, at this point, to make sure that for the lower box, you change the drop down item back to "My Work Network" before continuing - so make sure you choose that now for the lower box, and then click the round "OK" button in the corner.

You will then be back to the Connections screen, but on the advanced tab, so click the "TASKS" tab instead to get back to the usual screen, where "MY ISP" should be the top set of options/links, and "My Work Network" should be the lower set.

Go into "Manage existing connections" for each one, respectively, just to check that the radio button is ticked for the ORANGE settings, and not the old O2 ones, for each of these (MY ISP, then My Work Network). (NOTE - Sometimes, for a pass-thru connection using ActiveSync, I find that the option "Auto Pick" needs to be the one checked, so remember where it is now, in case you need come back to it in future).

Once you have made sure it is using the new ORANGE settings for each that you have just created (use the GPRS WAP, not the CSD WAP, for the Work Network connection), then click "OK", "OK", and then the X to come out of this, and back to the Today Screen. At this point we are nearly finished (thank the lord), but we have one last thing to set up, and this is the killer, hidden away and oft forgot about...

STEP 3

Now we need to finally configure an intricate setting within MMS, for it to work properly. To do this, click on the Today screen, to create or view your MMS messages, simply to get the MMS editor to open up.

Once you are within the MMS editor itself, there should be two menu items on the bottom of the screen - NEW, and TOOLS.

Click Tools > Options now.

This will bring you into the Options interface, but on the PREFERENCES tab. We need the "SERVERS" tab, so click on that, at the bottom, now.

There should be only one item, the O2 settings, then listed. I don't know any way to ADD a NEW set, so instead we just click/press on the O2 settings one, to go into that, and make the changes to this set.

Firstly, call the server name "Orange MMS" without the quotes.

The gateway address is vital. It is: 192.168.224.10

Finally, the server address is "http://mms.orange.co.uk/" without the quotes.

Click on "OK" and this will drop you back to the Options screen. Now click on the PREFERENCES tab.

Now we can set this up properly.

"Connect via" should be changed, or read "MMS Network" form the drop down list.

"Connect to server" should be changed, or read, so that it is now the new "Orange MMS" settings.

Retrieve messages immediately should be ticked.

Sending limitations should be 40K I am told (though this seems strange for video messaging).

Depending on whether you have the newest ROM upgrade or not, if you have the new, there will only be one item to change to 40K. If you have an older ROM, you need to set 40K for both the SEND, and the RECEIVE limit.

No. of attempts before aborting seems to be a matter of choice - I tend to use "1" for the option here.

On newer ROMS there is also a box for "Download on home network only". If you tick this, it means you WON'T receive MMS when roaming. I seem to recall before my upgrade last night that this item is not there on older ROMS.

Once you have set this up, click the "OK" circle, then the X to come out of the MMS Editor, back to the Today screen.

And WELL DONE - you are finished.

Try connecting to the Internet on your XDA2, and check that it 'dials' an Orange GPRS connection.

Then try sending and receiving an MMS. And then finally, make sure you have an ActiveSync pass-thru to the internet when the XDA2 is docked on the cradle too.

All being well, you should have a fully functioning XDA2, but using the Orange network to go with your SIM (assuming of course you unlocked it).

I hope this post has been useful (if not very lengthy), and any feedback or amendments, or questions, please post below - though I can't be held liable for any issues that result from it!

I should add that Orange SMS centre number, and Voicemail number, is automatically retrieved from the Netowrk when you have an Orange SIM in.

If you have any problems though, click Start > Settings > Phone, and then the Services tab.

There you can alter the usual stuff like call bariing etc, BUT, if you click the "Get Settings" button, it should retrieve the SMS centre, and voicemail number automatically.

Just saw this posted for the unlock software: http://xdaforums.com/viewtopic.php?t=24779&postdays=0&postorder=asc&start=0