If you are an Android phone user,I bet you know what I’m talking about.Since last month,Android 2.2(code name:Froyo) was introduced by Android team and in the past several weeks,some Nexus One users had reported they got some different patches of Froyo.

Some insiders of Google told that they were still doing the testing and bug-fixing and so only app developers and some press were given to try the new version first.However,today has a different story.In the early morning,I had got some information over the Internet that some builds for all Nexus One phones were found in the Google server and the direct links were exposed very quickly.I’m the one who downloaded and installed Froyo manually in my Nexus One by referring the instructions from the comments in Engadget.

One hour after I installed Froyo in my device,I caught an article from Google Nexus One board declared Froyo is starting to OTA to all Nexus One users from today.Most Nexus One users will receive the notification of upgrade by the end of this week.

So if you are so patient,you could wait for some more days to get the automatic upgrade;if you are just like me,you can download and install it manually to enjoy the power of Froyo first.

For Build number ERE27:http://android.clients.google.com/packages/passion/signed-passion-ota-42745.dc39ca1f.zip

For Build number EPE54B:http://android.clients.google.com/packages/passion/signed-passion-FRF85B-from-EPE54B.75b107d6.zip

Please follow the steps to get Froyo correctly running in your device:

1.Rename the downloaed file to update.zip
2.Put it at the root of your SD-Card and then turn off the phone.
3.Hold down the volume button and then press the power on button, it should go into a boot screen. Wait for a few seconds for it to load up proper and then select "Recovery" with the volume down/up button and press the power button.
4.Once you see an android holding a sign with an exclamation mark push volume down+ volume up + power button _at the same time_.
5.Select "apply sdcard:update.zip"(or something similiar) with the trackball and press it.
6.After the update is finished select "reboot system now" with the trackball and press it.
7.Wait for it to reboot, it can take a long time mind you.

(Thanks the reader afinite in Engadget for the detailed information.)