NOTICE!! : there was an error in the build.prop so please reflash with this version
The S017 ROM must be installed via TWRP recovery there and instructions on how to install TWRP either through flashing using SPFlashTool or using MobileUncleTool is given in the instructions sheet.
The update to S017 will update GApps and add other necessary system files like GMail/Maps/Talk/ update Lenovo specific apps like Launchers/SEcureIt/LenovoSync/Lenovo SuperCamera (SNAPit!) and Google Sync apps and update some framework files since the upgrade from S011 to S017 is only about 20Mb and mostly it is Lenovo bloatwares.
First you must already obtain root access to upgrade – if you are are not rooted and on stock ROM you must gain temporary root access by using VROOT (which is to be installed on PC and will Root the phone via USB connection- dont want to go into that topic – Google for it!) this will enable you to use MobileUncleTool to install TWRP recovery.
Or if you are experienced you can flash the TWRP recovery only using SPFlashTool.
Copy the zip file on the external sdcard and go into TWRP. choose INSTALL, select this zip file.
The settings defaults to Malaysia/Asia in the time/date settings and GPS location please change the locale from "my" (Malaysia) to your country e.g "fr"(France),"pl"(Poland) and continent from Asia to Europe or whereever.. DO NOT use MobileUncleTool/Faster GPS/GPS Doctor apps to change the gps.settings. you only have to edit your locale in the file called "gps.conf" in system/etc folder.(please use RootExplorer/RootBrowser app) There are specific settings only for MTK devices those apps (Faster GPS/GPS Doctor/MobileUncleTool) will overwrite the settings!This must also change in the NTPSync to get the best GPS fix.
Update to SuperSU 1.99r3, busybox 1.22.1 Stericsson,Sqlite added WeChat,Chrome,WhatsApp,RootBrowser,Lenovo SuperCamera(SNAPit)/DayDream Launcher (missing from A880/A889) as basic apps even after factory reset to get you going.
After first signing in to Google you will get error messages because Google Playstore need the latest update to Google PlayService (error on Search and Google Plus) after the downloads of GooglePlayService (gsf) the error will go away in a few minutes.