Can't change the ROM
Originally Posted by Optika
Thanks, but phone still shows Orange in front of any network i use the sim of.
It's not clear what you mean but...
At this moment in time, you can't change the actual ROM on the device, only remove software bundled with it by either HTC or Orange.
If you mean the Orange Theme, then you can't remove the "Orange UK" theme from the device as this is hard coded into the Operator's ROM but you can change the colour to any of the other standard WP7 colours (including Orange).
If you're talking about using a non-orange SIM card, I am pretty sure the phone will be network locked to Orange UK. You may be able to get the phone network unlocked. There are both official and unofficial routes to this, which you may or may not have to pay for. You'll need to do your own research into that, which should probably include speaking to Orange themselves.
If you clarify what "still shows Orange in front of any network " means, I am sure people here will help if they can.
White Nokia Lumia 920 from EE UK - stock rom
Matthew Ch 6 Vs 10:
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"Your will be done,
"On Earth as it is in Heaven."