What do you mean by rooted? My phones rooted folder is empty. I downloaded the manual 2.2 update have the instructions:
Download the .zip file above to a known location on your computer, and rename it 'update' (no quotes), keeping the .zip extension intact. Attach your phone to computer via USB, and access your sdcard. Place the 'update.zip' file into root of your sdcard. Remove phone from computer, and using a file manager, locate the update.zip file on your sdcard root to verify it transferred properly-the file manager should show it as a 'zipped' or compressed file. With file present, power down your phone, and boot into recovery mode. Select the update.zip file and allow the phone to apply the update. The initial boot of the new FroYo update has been reported to take a while, so be patient..FroYo won't melt! If you run into any problems, you are in luck! We have fora and threads dedicated to getting you quick help! Look for 'sticky' threads in Droid General. Enjoy your FroYo!
Download the .zip file above to a known location on your computer, and rename it 'update' (no quotes), keeping the .zip extension intact. Attach your phone to computer via USB, and access your sdcard. Place the 'update.zip' file into root of your sdcard. Remove phone from computer, and using a file manager, locate the update.zip file on your sdcard root to verify it transferred properly-the file manager should show it as a 'zipped' or compressed file. With file present, power down your phone, and boot into recovery mode. Select the update.zip file and allow the phone to apply the update. The initial boot of the new FroYo update has been reported to take a while, so be patient..FroYo won't melt! If you run into any problems, you are in luck! We have fora and threads dedicated to getting you quick help! Look for 'sticky' threads in Droid General. Enjoy your FroYo!