Cyanogen Mod 7 – Android 2.3.3 Gingerbread

It has been a long time since the announcement of Gingerbread, last year in December, and still no official update for our phones here in Europe. I definitely want to test the NativeActivity I’ve spoken before, and I would like to get root access on my phone to go further in my testing (and update relative posts on this blog).

So yesterday evening I made the big jump to bring to my Nexus One the power of the recently released Cyanogen Mod 7. I just followed the provided wiki tutorial to update the Nexus One, but here is my experience about it.

CyanogenMod Logo

So I started by backuping my data: SMS with SMS Backup & Restore, log calls with Call Log Backup & Restore, Dolphin Browser HD links with the Bookmarks to SD plug-in, and some savegames, that I all copied from my SD Card to my computer hard drive (given that other important data like Contacts, Email, Calendar and GTasks are already synchronized by Google). I forgot to save my pictures…

Then I unmounted and formated the SD Card, rebooted to the bootloader to wipe all data and restore factory settings.

I installed fastboot on my SDK tools directory, and unlocked my bootloader with:
fastboot oem unlock

I first wanted to flash the ClockworkMod recovery for later use with the famous ROM Manager application, but this version failed to unpack the radio-image I had to flash before Cyanogen (for script compatibility error), so I fall back on the Amon_Ra’s Recovery manual method.
fastboot flash recovery /path/to/recovery-RA-nexus-v2.1.1-CM.img

I had no more trouble flashing the radio-image (, and then the cyanogen-mod7-update ( and the Google applications ( I had to wipe all data once more to boot into the new OS, but after I have been able to restore all my data, to re-download all my favorite applications. Now I can enjoy the new eye-candy tools and other gadgets from Cyanogen, I can play with the new Java and Native API or improvement from Gingerbread, and I can use “root enabled application” like ROM Manager or the “su” command line tool.

This morning, I add the good surprise to see that a ROM update was out, so I used successfully the ROM Manager application to make a full backup of my phone to the SD Card (need to reboot on ClockworkMod recovery to proceed, 350Mo written in a few minutes), to download and to flash the OS update. Quick and smooth.

So now on, stay tuned for more tips and tricks about Android development!

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