I cant update to 2.2.1. Its because I did the one click root, I know this. I was told I have to re-install FRF91. I go to this site.. Nexus One/Guides & Tutorials - XDA-Developers and I follow those steps but it doesnt work. I dont know if I am doing it wrong or if something else is wrong. I will go over exactly what I do to re-install and if anyone can, tell me if I am missing a step and/or doing a step wrong. 1. I download the file for FRF91. 2. Using ASTRO, I rename it to PASSIMG.zip 3. I copy the file, and paste it in the file labeled "Sd card." the other options to put it in are "asec" and "secure." 4. Power phone down. 5. Hold down the volume minus button and power it on. A white screen appears with 3 android guys at the bottom. It says "loading passdiag.zip" it says "no or wrong image." 6. It then says loading "passimg.zip." it takes the time to load it. 7. It says checking "passimg.zip." 8. Then it goes to a list of options which are..FAST BOOT, RECOVERY, CLEAR STORAGE, SIMLOCK. Thats where it all falls apart. Step 8 is supposed to be when I supposed to get the update by pressing volume up. But if I press volume up or down its just scrolling through that list of options in step 8. Is ASTRO the reason? Am I not putting it in the right SD CARD folder? I am so confused. What is going wrong? Do I have to Revert HBOOT to older version? if so, I have no idea how to do that. Help me please.