How to create an android gold card for HTC Devices

Here is a complete tutorial to learn how to create a Goldcard for HTC. A Goldcard is a special SD card that, once inserted into the device, you can update RUU file with a different CID from your device.

Here’s how to create goldcard for HTC in few simple steps:
Prerequisites:

• MicroSD memory card with Class 4 or higher
• PC running Windows
• ADB working (Download the SDK from here)
• HXD Hex Editor

Procedure:

• Format the microSD card to FAT32 using your computer’s resources.
• Insert the microSD into the device and start it.
• Connect your device to your PC
• Go to the directory-tool platforms via the SDK command prompt (CMD command to start dates)
• Type: adb shell cat/sys/class/mmc_host/mmc1/mmc1: */cid and then press enter.
• You should get a number. Copy it on notepad
• Go to this page, pasted the number you found and click submit.
• Go to this page, enter the new inverted number obtained above and download the file
• Open HXD Hex Editor that you downloaded earlier.
• In Extras and select ‘Open Disk’. Under the physical disk, select Removable Disk (microSD card), uncheck ‘Open as Read only ‘ and press OK.
• Go to the menu ‘Extras’ again and select ‘Open Disk Image’. Goldcard Open the image you downloaded earlier.
• Now you should have two tabs: one is your removable disk, the other is the image Goldcard. Press OK when shows ‘Sector Size’ (selecting 512 (hard disk/floppy disk)) and click OK.
• Click on the tab ‘goldcard image’. Go to the menu ‘Edit’, choose ‘Select All’, then select the menu ‘Edit’ again and click ‘Copy’.
• Click on the tab ‘Removable Disk’. Select from offset (line) 00000000 Offset (line) 00000170 (00000170 including the line), then click on the menu ‘Edit’ and select ‘Paste Write’.
• Click on the menu ‘File’ and select ‘Save’, accepting the warning.

Finally you have created your Android Gold Card for HTC Devices.