[Desire Q&A, Help & Troubleshooting] Droidzone:
Frequently Asked Questions (FAQs) for Newbies

Frequently Asked Questions (FAQs) for Newbies

1. Why do I need to Unroot?

To take the device to service centre for warranty

To fix problems with Boot and Recovery unsolved by other methods

2. What are the methods of unrooting? Which is safer?

Basically both methods are the same. It is the process of flashing an original HTC software onto your ROM. One method involves running an .exe file from Windows, and the other is by running a file extracted from this exe file from the sdcard. The latter method is called the PB99IMG.zip method, because it involves renaming the rom file so extracted as PB99IMG.zip. This method is generally safer because the whole process can be completed from your phone itself. The method of running the exe is prone to corruption because of problems with Windows drivers, your Usb cable, Battery issues, and even a Windows System Failure or System Crash or Power Failure! :D

3. How do I get a PB99IMG.zip? [EddyOs's complete tutorial for Dummies]

(The illustrations and answer to this question has been provided by EddyOS)

If you still get lost, dont even bother to ask!!

1. Double-click on the RUU file and wait until you get to the first main screen

2. Move the window to the bottom of your screen because it can’t be minimised and will sit on top of all other windows

3. 3. Click on Start>Run and type ‘%temp%’. Then click ‘OK’

4. Look for the newest folder in the temp folder. Double-click on it

5.Copy the file called ‘rom’ to your Desktop

6. Rename the file called ‘rom’ to ‘PB99IMG’

7. Copy this file to the root of your SD card (root = not in any folders)

4. Do I need a Goldcard?

If you have a recent version of the RUU for your Device, available on Shipped Roms, you dont need a goldcard. This is the usual scenario for people who purchased their Desire in Europe, and so have an unbranded Desire. All Branded Desires need a correct branded version of the RUU, and any other RUU including WWE (Worldwide English, or European) RUU will not work for them. Also if an unbranded Desire user wishes to change RUU to a branded version, he will need a Goldcard. This is because all Desires have a particular software tag in the Rom, called the InfoCID. This dictates the Region code. For Eg. An Indian Desire is branded and has InfoCID of HTC__038. When you change a RUU to different region, what you actually do is reset the InfoCID setting. Changing the InfoCID setting requires a Goldcard.

5. What is a Goldcard?

It is a normal MicroUSB card specially prepared in such a way that its Sector 0 (which normally doesnt hold anything useful) is modified, so that it signals to the HTC RUU that the InfoCID may be changed.

6. How do I create a Goldcard?

Just download this tool (Credits and All Rights by klutsh@Modaco), and run it.

In case your card in phone cannot be detected by the PC, download and install Goldcard Helper from the market and use it to generate the Reverse CID

7. Can you tell me more about Goldcards?

Sure. I've already posted it for you. :) Read the FAQs in this thread.

8. I think I've bricked my Desire. I cant unroot it with your method. What can I do?

Follow my thread on Unbricking a Bricked Desire. Though it's written for SLCD device, it will work for AMOLED too. The chance of success depends on two essentials: 1-That you have a working goldcard, and 2-You have a compatible RUU (of version higher or equal to the current version)