Are you using Android 2.2 (froyo)? Android 2.2 is not yet widely available, but Android 2.2 (Froyo) can be tried in a number of mobile phones. Example HTC has released it for Desire.
In the Americas region utuk Desire Froyo upgrade was released in August 2010. As for the Asia region recently released a few weeks.
The following steps are necessary to switch to Android 2.2 or Froyo :Users can check in advance what the update has been prepared by HTC. To do it just need to go to the Settings menu -> About Phone -> System Sotfware Updates. Wait a while and the phone will check for latest updates.
Backup file must be done. Because it will change the operating system, all installation files, contact lists, and some other files that are on the internal memory will be deleted.
Before the latest update, make sure that enough space is available on the external memory is used. Because each file to be downloaded will first put on the Micro SD card is there.
- Prepare a smooth internet connection
After examining the latest update available on HTC's server, the user will be prompted to download some files first before switching to Android 2.2 (Froyo). After a new mobile phone that is ready to upgrade the operating system. In order to smooth the installation process should also smooth internet connection. Due to the size of the file being downloaded about 90MB.
After all the donwload is complete, the user is now ready to migrate to Android 2.2. Wait a moment, the phone will perform the installation automatically.
Good luck.