Unlocked MDA with a T-Mobile PAYG SIM - Upgrading, Modifying and Unlocking

I'm in the U.S. and kind of confused about how everything works. If I buy an unlocked T-Mobile MDA off ebay or somewhere else, will it work with a T-Mobile UK Pay As You Go SIM card? If not is there a list somewhere that says what SIMS work with what phones/PDAs?

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newbie question, purchasing the T-mobile and using in US?

I would like to purchase T-mobile MDA-3 for use in the USA and Europe. Can I just put in my US simcard and will it work or does it need to be unlocked? What should I look out for? ANy suggestions would gratly be appreciated?
Most come unlocked. I just recived my MDA III, it was T-Mobile branded when I recived it. Came in a German T-Mobile Box, but my ROM was English. I bought mine through Tiger-Direct.
Do you mind if I ask how much you paid for it? Also, will my current T-Mobile sim drop in and work?
The MDA3 is quad band so you should be able to use it anywhere in the world! So long as you have roaming set up on your sim you should be fine!
Not so sure about the locking though!
I am using it in the US
I have an iMate PDA2K in the US and it works just fine. T-Mobile gets a bit confused when you call tech support and their system can't automatically recognize your device, but I just tell them that I have one of their HP Windows Mobile models that they sell in the US and they seem cool with it. All I did was swap in my SIM card and it started working right away. GPRS, etc all works fine.
-Robert

o2 orbit where to unlock???

hi i plan to buy a orbit
but i need to work it on mmy t-omob account
isi t already unlcoked
if not what do i need to do so??
dotn min paying if it easier..
also will everythign still work if i move it to tmob
the co-pilot
the wifi etc.
please advise
I bought an orbit on Tuesday, and I'm using my Orange Sim in it until my number gets ported, so my handset is unlocked.
http://www.imei-check.co.uk/
I have an orbit from an o2 shop. I also have my Orange sim in it untill my number gets ported. Therefore - I'd say they're unlocked!
My experience is that all O2 phones have been network-unlocked. Certainly the last 6 I have had were.
Pete. said:
My experience is that all O2 phones have been network-unlocked. Certainly the last 6 I have had were.
Click to expand...
Click to collapse
I would like to differ.. The XDA2i I had was locked to O2. I bought a XDA Exec in July. That is unlocked out of the box.. Seeing the discussion on the thread, it seems that O2 have adapted a strategy of leaving their phones unlocked for some reason..
Mine was open on all networks as I am using my T-mobile sim in it!
Playing around with a spare Virgin Mobile simcard with O2 sourced phones:
Orbit unlocked
XDA2i locked
Exec unlocked
Mini S unlocked
iPaq 6915 unlocked
Nokia 6280 unlocked
Motorola Razr unlocked
Well I've put a Virgin SIM in mine straight out of the box from O2 and it works so it's definitely unlocked. The only problem is that it says T-Mobile on the screen for network - odd!
^^They all do that sir
IME unless the phone is Virgin branded it will display T-Mobile (who Virgin lease their virtual network from).

[Q] Sim-Free and Unbranded

Hi. I have just purchased a "brand new sim-free unbranded" HTC Desire, however, when I inserted my o2 sim card and switched the device on I got a message that a different sim card was being used. I also had to select between three carriers being o2 contract, o2 payasyougo and Tesco Mobile.
Basically, my question is how can I check that my device definitely is sim-free and unbranded and not previously locked to a network?
Sorry if I am being vague or not supplying enough information. I otherwise love the phone and still trying to figure it out haha.
Many thanks
Scott
Your phone is working so its unlocked and it was just setting up your gprs settings
Don't know why anyone would pay out for a sin free phone. Because almost all pda phones you can unlock for free and debrand them as well
Sent from my spectrum zx
Unlock for free!?
I'd love to know how you network unlock the Desire for free?!! I've failed miserably despite buying a code.

Taking Desire to USA on T-Mobile

Hi there
I live in the UK and have an HTC Desire which has been baked and it's just the way I like it. It was bought on a T-Mobile contract and is locked to T-Mobile.
I am travelling to the USA and want to put a USA T-mobile sim card in it.
The last time I was in the USA I took my Nokia N95 over which was locked to T-Mobile UK but it wouldn't work over there with a USA T-Mobile sim card.
What will I have to do to get it working over in America? Is it just getting the phone unlocked in my local market in the UK?
I don't want to be empty handed in the USA. I love my Desore too much to leave it in the suitcase!!!!
Any advise is grateful
Adrian
The phone is locked to simcards from t mobile UK, hence why you couldn't use a t mobile US simcard.
You can unlock the desire for about £10 with a code from ebay, no cables or mods required, simply put in the code when you first try to use the other sim card. You may find you only get 2g coverage in the US as I think the euro Desire only works with 2g networks in the US.
Sent from my HTC Desire using Tapatalk

Is the 3 version network locked?

I need to know if the 3 version is sim locked or not, id heard it wasn't so I was planning on getting one and putting my o2 sim in, thanks for any help.
Version from 3 is not locked. I bought one and use it with Russian SIM card.
I bought phone with PAYG.
They have confimation of this in their twitter. You can try to find.
I purchased from a 3 shop yesterday and can confirm that is unlocked. I'm successfully using my T-Mobile contract SIM from my lost/stolen Galaxy S2
As above all current stock at Three is Sim Free , same with the Nokia Lumia 800.

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