An HTC Desire unlock code is needed for unlocking the mobile to any Network or Carrier.
Getting an HTC Desire unlock code is simple. First you need to find out your mobile phone’s IMEI number. 
You can find it by typing *#06# on your HTC Desire. This number is unique to your phone and will be used to calculate an unlock code for your HTC Desire.
Next you should purchase the unlock code for your HTC Desire , There are lots of websites where you can buy the code for your HTC Desire , below we have attach a list of websites.
Once you have your HTC Desire unlock code, you can follow this simple steps below to unlock your cell phone:
How To Unlock HTC Desire
1. Power on your HTC mobile phone with an unaccepted SIM card ( Different Network )
2. Enter the 8-digit unlock code that was given to you .
3. Your HTC Desire should be unlocked and may automatically reboot!
To get a HTC Desire Unlock Code
We recommend the following sites to get the HTC Desire Unlock Code : http://www.theunlockphone.co.uk
If you require several codes you can visit : http://www.basegsm.co.uk for Wholesale Prices
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