
You can download the file from Google Link. After downloading the file place it on the root of your SD card. Recheck the file name is update.zip. If filename is different you need to rename it to update.zip. Then follow these instructions to install Android 2.2 on Motorola Droid
- Switch off your Droid and boot to recovery mode by pressing Power+X.
- When a triangle with exclamation mark appears release Power+X.
- Simultaneously press the camera and volume up buttons.
- With D-Pad, pick up “apply update.zip” and press the gold button on the D-Pad.
- The update is run by your handset.
- After completion, select reboot Droid with D-Pad.
- Android 2.2 installation is complete and your phone reboots with this new version.