[How-To] ROOT Your Nexus One without Unlocking the Bootloader. ALL ROM'S!! - Google Nexus One Owners | Google Groups Ok, I posted this on my Google Groups page where I was able to Tidy it up and update it easier. Sources credited and applied. I did this on 2 N1's. No wiping, no data loss, both T-Mobile with FRF91. No data loss, no wipes, no nothing. The only reason you will have to wipe or anything is if you want to put a custom recovery on it and a custom ROM.