Leaked beta Froyo 2.2 update download, instructions, and HelixLauncher user Warnings
There is a thread with this info in it, but it is buried deep in over a hundred pages and I thought the warning for HelixLauncher bared having a new post.
Here is the link to download the update.
Looks like that link is dead... here is a mirror
And one more just in case the others go down.
Warning!! If you use Helixlauncher, uninstall or remove its defaults. It will go into a Force Close loop, making the phone unusable without booting into recovery again and performing a factory wipe/reset.
How to flash the update, I used these steps and it worked fine, but remember, there is always the possibility to brick the phone.
1. Download file from link up there.
2. Rename the file to update.zip.
3. Note that if you're using Windows and don't have "show file extentsions" turned on in the file explorer you won't see a .zip. Just rename it to "update" (no quotes, of course) because it's already a zipped file.
4. Copy the update.zip file onto your microSD card.
5. With your Nexus One off, hold down the trackball and press the power button.
6. You'll be booted into a white screen with three Android robots on skateboards. Select "Bootloader."
7. On the next screen, select "Recovery."
8. Your phone will reboot, giving you a picture of the Android robot and an exclamation point inside a triangle.
9. Now press the power button and volume up button at the same time. It could take a couple of tries.
10. Now (using the trackball this time) choose "Apply sdcard:update.zip" and let things run their course.
Taken from the update-1 instructions on:
Also, I don't think my phone rebooted own its own after the update. After a minute or two, I tried hitting power and power+vol up to get the menu and reset manually. During that time it reset and booted up fine. So I say give it a few minutes before trying to reboot after the update finishes.
Edit: a ton of threads have popped into existence about froyo, but I didn't see any with early warnings about Helixlauncher.... ah well, maybe this post can be helpful for someone out there.
Edit 2: From what I am seeing, AT&T phones are on a different build of Android than the T-mobile N1. Seems like if you have an AT&T version you are out of luck for right now. This update was meant for the demo devices given to the Press outlets around launch, before the AT&T phone existed.