[7 Mozart Windows Phone 7 Development] ioannis66:
I can confirm that it works on HTC Mozart.

Some things to make clear for the ones that encounter problems:

(credits go to the original posters)

How do you find the CID of your microSD?

1. Your microSD should be 1 or 2Gb, not the SDHC version of 4Gb.

2. You need a mobile phone with Windows Mobile 6.0

3. Establish connection with your pc and your mobile device (for XP), using ActiveSync or Mobile Device Center (for Vista or 7)

4. Download an install the PSAS Free Version: here

5. Start PSAS (needs administrator rights)

6. Goto "Hardware Forensics" - "WINCE SD Card Utils"

7. Click on "Get Serial and Disk ID".

8. Choose the right SD Card (note the size)

9. Change the displayed CID (i.e. 9E000000400000000000020002000000). Replace the first 2 chars with "00".

10. Copy the new CID (i.e. 00000000400000000000020002000000)

How to i generate the image for my Goldcard?

1. Go to the PSAS website here

2. Write your email, your new CID and select type Windows Mobile 7

3. Click on Generate Goldcard and wait a few seconds

4. Go to your email and download the attachment goldcard.img

How do i prepare my SD card to make it a Goldcard?

1. Remove your SD card from your mobile device and insert it in your USB card reader

2. Format the card using these settings: FAT32, 4096 bytes and uncheck the quick format option

3. Wait for the full format to complete

How do i actually make my Goldcard from the image i have?

1. Download HxD Hex Editor from here here

2. Install and launch HxD Hex Editor program (make sure you use "Run as Administrator" under Vista and 7)

3. Go to Extra tab > Open Disk. Under Physical disk, select Removable Disk (Must be your SD card), uncheck Open as Readonly, click OK.

4. Go to Extra again, Open Disk Image, open up goldcard.img which you’ve saved/unzipped earlier.

Now, you should have two tabs, one is your removable disk, the other is goldcard.img. Press OK when prompted for “Sector Size” 512 (Hard disks/Floppy disks).

5. Click on “goldcard.img” tab. Go to Edit tab > Select All, edit tab again > copy.

6. Click on the “removable disk” tab. Select offset 00000000 till offset 00000170 (including the 00000170 line), click on Edit tab and then Paste Write.

7. Click on File > Save. Now you can exit the program.

8. Remove your Goldcard from the USB reader and insert it again. If you get a message to open the new removable disk, you are doing good! If the operating systems prompts you to format the disk, then either you have done something wrong or the model of your SD card is not supported (try Sandisk or Kingston).

9. Download the official HTC RUU package you want to install, like RUU_Mozart_HTC_Europe_1.28.401.04_5.52.09.16_22.33 a.50_RELEASE.

10. Extract the file you have just downloaded and copy the RUU_signed.nbh file to your Goldcard

11. Rename the RUU_signed.nbh file that is inside your Goldcard, into:

MOZAIMG.nbh for Mozart

SPARIMG.nbh for Trophy

SCHUIMG.nbh for Schubert

GOLDIMG.nbh for Gold

MONDIMG.nbh for Mondrian

Your Goldcard is ready!

How do i actually flash my HTC phone using my Goldcard?

1. Insert the SD card into an SD card reader (SD card slot, not microSD-slot for multi readers), connect the Y-cable with usb power and then to the mobile. You need a Y-cable or you can make one. It took my 30 min.

2. Press "camera+volume down+power on" to enter the bootloader in host mode, and the flashing will start!

Good luck.

Sources:

http://xdaforums.com/showthread.php?t=875991
http://xdaforums.com/showthread.php?t=825397
http://xdaforums.com/showthread.php?t=572683