How to a flash the rom.zip file to my Android phone?

Question

I extracted the rom.zip from the HTC RUU installation and I want to flash it to my phone.

In case it matters, it is an HTC Desire HD, rooted with Cyanomod and ClockMod Recovery on it.

All I want is to flash the original stock firmware back to the phone. Because the phone has now a different firmware RUU will not recognise it.

What I need to do?

PS. I tried to rename the file to PB32IMG.zip and use the update from zip option but it doesn't work.

Answer 1

PS. I tried to rename the file to PB32IMG.zip and use the update from zip option but it doesn't work.

How does it not work? Please provide details.

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The general procedure for installing a new ROM would be:

1. Download ROM .zip file to SD card.

2. Back up current ROM in case new ROM does not work:

   • Boot to Recovery Mode (hold down the Power and Volume Down (Vol -) keys at the same time under boot)
   • Select 'backup and restore'
   • Select 'Backup' and confirm
   • wait for process to finish and go back to Recovery main screen

3. Wipe and factory reset (this is important for stability! Especially when installing a different ROM, and not just an update. With an update you can usually skip factory reset):

   • Select “wipe data/factory reset” and confirm
   • Select “advanced” then “wipe dalvik cache” and confirm
   • wait for process to finish and go back to Recovery main screen

4. Install ROM.

   • Select “install ZIP from SD Card“
   • Select “choose zip from sdcard“
   • Select the .zip file you downloaded to the SD card in step 1.
   • Wait for process to finish, go back to Recovery main screen and select Reboot.

Where in the above process do you get stuck?