# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2009-10-05 16:03:24 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/4630992887) Step-by-Step Installation of CyanogenMod's "Legal" 4.1.99 Android ROM [Firmware] http://j.mp/kLiHI