Nexus One Android 2.2.1 update

There have been so many updates in the past week that it seems like every Android device is deciding to receive an OTA just to not feel left out. 

This time, Google's own flagship device, the Nexus One, receives an update to its OS. Here is the information on the update, courtesy of Devastatin from the XDA forums:

  • Android version: 2.2.1 (!!!!)
  • Baseband version:
  • Kernel version:
  • Android-build@apa26 #1
  • Build number: frg83

Update instructions after the break. Thanks, Anthony!

1. Download the Android 2.2.1 firmware for the Nexus One Here
2. Rename the file and copy it to your microSD card via USB. [Note: make sure the file is named and not]
3. Power down your Nexus One
4. Hold down the “Volume Down” button as you power the phone back on.
5. A screen should appear showing your phone’s system searching for various files. Scroll down to “recovery” and press the “Power” button.
6. When you see the triangle with an exclamation point symbol, press the “Power” and “Volume Up” buttons at the same time.
7. From the menu that appears, select “Apply”
8. When the screen displays “Install from sdcard complete” select “reboot system now” and wait for the phone to power back up. (this will take a long time)

Just a software update as far as we know. We have heard that once it is updated, some of the 3rd party keyboards have issues. Swype was reporting an issue while not working and Swiftkey wasn't predicting words. So if you do this update, watch out as you may not be able to use your favorite keyboard right away. 

This is a very new update, so we'll keep you up-to-date as we hear more. [XDA forums] Thanks to Anthony and Devastatin for providing info!


Reader comments

Nexus One update pushing out now - Android 2.2.1 and Build FRG83


I think they were in reference to the remark of "it seems everyone is pushing OTAs this week."

Bro! Tmo doesn't do ota's hahaha I was with Tmo for six years. my EVO got 2.2 before mytouch got 2.1 Tmo doesn't care. Mod it

Yeah I'm pretty sure they made it clear it was for the nexus only and I don't see anyone asking other wise but Thanksgiving for clearing that up for us. So is there a change log?

Basically, people were complaining about 2.2 not having native AAC+ encoding, among other file formats, thus reducing sound quality.

Yes I would love to see a change log, I really want to see what has changed or been fixed with this update. Especially if Swype sometimes gives issues, I love Swype and I'm hesitant to perform the update if it will not let me use Swype!

Reinstalled swype completely (as I seem to have to do on any update), and everything works fine again.

I have an AT&T version and got the OTA update about an hour ago. I haven't played with it too much, but early indications suggest that they have fixed, or at least bettered, the wi-fi sleep issue.

My Microsoft Exchange account now allows the administrator to make changes to my device. I.e. I can no longer unlock with a pattern, have to use a PIN or password.

If you have root access on your device, you can delete that version of Exchange email by doing the following:

adb remount
adb shell
mount -o rw,remount /system
rm /system/app/Email.apk

then install an earlier version of Email.apk. Email me and i'll send you a copy. I hate the security update in Exchange email, so I just counteract it by using that version. (

PS You can also delete Email.apk by uninstalling it through Titanium Backup. Remember, this is only if you have root access (because it's on the system level).

I tried to update it via manually doesn't work. Is this for rooted nexus ones or stock? Has anyone received it OTA?

I have also failed to update manually... would it work to rename the file just (update) and not since it is already a zipped file? Do not want to try it without confirmation.

Definitely, most of the time file extensions are hidden in folders view. If you see in that file, but no extensions in other files, then delete the .zip and retry!

I have a rooted Nexus with the one click root installed. Should I unroot the device before I install the OTA update?? If I unroot the phone will I be able to use the one click root to root the phone again???
Man plenty of roots in that question.

I'm having errors installing as well, rooted Nexus One with unlocked bootloader, trying to install the sdcare from clockworkmod recovery it gets to the part that says talks about verifying something on the sdcard (after verifying system package) and says update aborted. Any ideas? I downloaded the file to my PC and transferred to the root directory of the memory card with a USB cable


most people dont even have Android 2.2 and the N1 is getting Android 2.2.1??? God, i LOVE having a stock Android phone!!!!!!!!!!

Been seriously considering acquiring a lightly used Nexus for some time. And they're getting less expensive when dummies see "the new shiny"...

Best decision I ever made....i REALLY want a freakin Nexus Two. C'mon Google, don't leave those of us who love "made by Google" and the updates that comes with hanging!

got my nexus update OTA just now. i live in Manila. for the third party keyboard apps, i think you guys using it just need to reinstall.

Appears at least for me to resolve the issue with the wifi adapter dropping any data connection when the screen is off. That nagging wifi problem finally seems to be gone!

I'm on Tmobile with a stock, unrooted, locked bootloader N1. Doing repeated checkins since 2am... still no update yet =/ blah. I guess google has us in Organizational Units serverside and mine hasn't been applied the update yet.

Thanks, I did end up doing that about an hour ago. Worked fine without a hitch, despite my irrational worry.

Loving the new update; finally got my exchange email account to work.

Are you guys having trouble with SwiftKey? I haven't updated yet, I don't want to lose my auto predict... Who knows how long a fix could take...

Only worked after a reinstall. But yeah, then you will definitely lose your auto predict stuff.

I used am rooted updated using custom ROM - love it so far. using new radio and getting 3065/652 speed tests from app, tmob..

I just updated it on my AT&T Nexus One.

I should of asked first. Is this for the AT&T or T-Mobile Nexus One?!! Holy Moly!

Re Nexus One and Sywpe issues with Android 2.2.1

At first Sywpe did not work after a manual install of Android 2.2.1. I tried Sywpe uninstall and reinstall but no success. I finally tried Settings, Applications, Running services, and then keyboard settings for the keyboards you have. Mine was Smart Keyboard Pro. Each keyboard seems to list a Swype setting which only requires the "check mark" to be set and then you are good to go.

Thank goodness, as I really enjoy Swype and I can type very very fast with it. I would gladly pay for Swype if they will ever change their business model and list it in Marketplace.

Just did the manual update on my N1 with AT&T. No problems installing it, the reboot took an eternity it seemed like. Playing around with it a little bit makes me think that the google apps like market and chat are snappier. This may just be me wanting them to be faster, but even so I am happy. Keep the updates rolling google!

Mine was Smart Keyboard Pro. Each keyboard seems to list a Swype setting which only requires the "check mark" to be set and then you are good to go.

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