CyanogenMod for the OPPO N1

As we have promised earlier, you can now download the CyanogenMod firmware for your beloved OPPO N1 and install it easily on any version of the phone. This ROM is maintained by the CyanogenMod team and they will be responsible for keeping it updated over time.
CyanogenMod was specially tailored to support all of the N1's innovative hardware and software features like the O-Touch Panel, O-Click Bluetooth remote control, the revolutionary rotating camera, and also unique features from ColorOS such as double tap to wake and screen-off gestures.

// HOW TO INSTALL CM //
To install CyanogenMod just follow these easy steps below.
Please be warned that by installing this you will lose all your data on your phone including installed applications, contacts, messages, but your files will still remain. Make sure to backup your important data!
Copy the file you have downloaded to your N1
Launch the System Update application found from the Tools folder found in the App Drawer
Select "Local update", browse for the file you have downloaded and press "Upgrade Now" when prompted
Select English in the OPPO Recovery
Select "Wipe data and cache" and wait for it to finish
Select "Install from SD" and browse the file you have previously copied to your phone
Wait for the update to finish and then select Reboot
// HOW TO INSTALL ColorOS //
If you ever decide to go back and use ColorOS again, you can easily do that by following the steps above with a ColorOS firmware.

http://www.oppoforums.com/threads/cyanogenmod-for-the-oppo-n1.8017/#post-124330