This Lenovo A806 AOSP V3!!
Credits go to 卡卡卡不死你 at Sina Blog http://weibo.com/kaka44444?from=page_100505_profile&wvr=6&mod=like (who developed the rom from a Yusun Mobile) and baldos81 who orignally put the rom here.
Installatioon: put the rom in SD card enter recovery swipe and blah blah blah.
Changelog:1.Removed shitty Chinese SuperSU, now the rom itself isn't rooted, flash SuperSu.zip.
2.Removed Lenovo Gallery and Camera, now stock version.
3.Added google now launcher, since orignal rom Nova launcher is in /data and can be lost in a swipe. (/system/app/launcher.apk)
4.Added ChromeBookmarksSyncAdapter.apk.
5.Removed all files under /data, not necessary you can download yourself.
6.Replaced lockscreen with holo locker, the orignal is malware.
7.Added Google Plus support.
8.Removed CNNIC root certificate.
Known bugs:1.The Photo Sphere in Camera crashes.(Not actually a bug, the phone doesn't have gyroscope as required.)
2.The Alarm volume remain zero when switch profiles from Silent or Meeting to Normal. Workaround: Swtich to Loundness first.
3.Default storage location is external no matter you change the setting,
4.Holo Locker has a constant notification. Solution: Disable its notification. (Don't ask how.)
Note: Always choose Lenovo A806 at Choose you device even if you have Lenovo A808t (Mine is Lenovo A808t actually) then flash the modem. There won't be any problem if done properly. Make a nandroid backup if you may.