http://s.tinhtecdn.com/threads/lenovo-a390-android-4-2-2-rom-cook-voi-hieu-suat-cao-va-pin-tuoi-tho-cao.2124165/

Rom 4.2.2 a390 จ้า อันนี้ขอบอกว่ายังไม่ได้ลองนะคราาาาบบบบ ใครใจดีลองดี 5555
ความสามารถ
(Version 1.0)
– Performance machine:
+ The APK file is deodexed & zipaligned help optimize performance RAM
+ NX Using the latest kernel (1.3.5) helps overclock the CPU to 1.6GHz, fully customizable RAM-DISK, optimal battery life, …
Preset + All-in-one Toolbox (latest ver 3.3 – 21 tools)
+2 RAM optimization software: AutoKiller Memory Booster PRO FULL and automatically frees up RAM
+ Section Battery Saving PRO software helps increase battery life up multiple times
+ some custom computer system helps run smoother, faster and more stable
+ app omitted the unnecessary or less used to
– Interface
+ Next Preset 3D Launcher 1.36 (latest) + 1 theme of
Sense Widget FlipClockWeather +
– Networking
+ Custom system helps speed browsing and downloading with Wifi/2G/3G
– install app
+ Facebook, Mp3Zing, Root Explorer,. ..

น่าจะไม่ work รอหาอันใหม่