Nokia has gained access to the prototype of Vanilla Android ROM incorporating it in its Nokia X.
Nokia users can now make use of Nokia’s first ever custom ROM created on the basis of the Android Open Source Project. Till now, one could only side-load and derive Google apps, even the Play Store. However, now vanilla Android 4.1.2 Jelly Bean can be run on the Nokia.
The build incorporates Qualcomm specific optimizations and is grounded on Code Aurora branch jb_rel_2.0.3. It is derived from the XDA senior member dhacker29; who has in the past, anchored AOSP to the Moto G. Surprisingly features such as FM radio, dual-SIM, camera as well as network connectivity seem to work on this system just fine. This has allowed it to earn a reputation of being reliable however Nokia X’s navigation key has made it problematic to navigate about the OS.
Consequently, there is an alternate build; one that contains navigation bar making the phone more convenient and comfortable to use.
Source: XDA Developers