wiki.mbirth.de/know-how/hardware/google-nexus-one/_posts/2010-05-23-manual-firmware-update.md

title	layout	created	updated	toc	tags
Manual Firmware Update on the Nexus One	default	2010-05-23 01:33:27 +0200	2010-05-23 01:33:27 +0200	false	know-how hardware google nexusone passion firmware

To manually update the firmware, put the new firmware named as update.zip onto the root directory of the microSD card. Then do this: (found at androidspin.com)

1. power off the phone
2. hold down the trackball and press the Power button.
3. you'll get a white screen with three Android robots on skateboards → select Bootloader
4. now select Recovery
5. the phone will reboot showing a robot and a warning sign
6. now press Power and Volume up together (if it doesn't work the first time, try again)
7. now choose Apply sdcard:update.zip (use trackball!)
8. wait for it to finish
9. choose Reboot now