UpGrade your Android to Android 4.0 Ice Cream Sandwich HTC..
You’ll be able to upgrade your Android to Android 4.0 Ice Cream Sandwich in HTC HD2, just by following the steps below:
1. All you need to do is to download Android 4.0 ICS by clicking here. And rename the .zip file as update.zip.
2. Now upload the downloaded .zip file in the root directory of your Android phone via USB. Don’t place the update.zip file inside of any folder however place it out the all folder which usually termed as “Root Directory”.
3. Turn off you mobile and power on it and don’t let go power button followed by volume down.
4. Use volume down button to go down to 8. AD Recovery.
5. Then press call button.
6. ClockworkMod Recovery will be loaded then.
7. Select wipe data/factory reset. (You can skip this step if upgrade from same ROM)
8. Select Yes — Delete all user data.
9. Select wipe cache partition. (You can skip this step if upgrade from same ROM)
10. Select Yes — Wipe Cache.
11. Go to install zip.
12. Select Yes – Install your zip file.
13. Press power button to go back.
14. Then reboot your phone.
