I bricked my Android Desire phone (lost USB connection)!

Damn – finally I “managed” to brick my new Android (HTC Desire) phone!
After many successful attempts with rooting and applying a new ROM to the phone, it finally backfired today.

Thank God for the XDA-developer forum and other relevant sites, that can help you when this happens.
The concrete symptoms was these in my case:

- Unable to connect your phone using USB when booted into Android.
- Unable to connect your phone using USB in Custom/Pushed Recovery

So what to do?
I found this procedure to work:
1) Power down the phone
2) Start again by holding down Power + Volume Down
3) Connect the USB-cable from PC to phone
4) Select FastBoot (USB) mode
5) Open a CMD-prompt on the PC
6) Enter this: 'fastboot oem enableqxdm 0' in the command prompt (this will enable the SD-card again)
7) Tranfer this file (update.zip) to the SD-card (via what ever is possible, I did it via email as an attachment!)
8) Turn off the phone
9) Restart again by holding down Power + Volume Down
10) When the screen with the big red exclamation mark appears, hold Volume-Up + press Power and select apply sdcard:update.zip.
11) Let it run and reboot
12) You are back to having SD-card access and USB connection to the PC

Links of interest:
http://android.modaco.com/content/htc-desire-desire-modaco-com/307365/14-jun-r6-riskfreeroot-htc-desire-rooting-guide-now-with-hboot-0-80-and-os-to-1-21-support/

http://forum.xda-developers.com/showthread.php?t=691187&highlight=lost+USB+connection