ROOT Star N8000 + Haipai i9220 / Tutorial STEP by STEP for beginners
THANKS to THIHAZ + LAUTON + MICKEYSTEELE and all others contributors from XDA DEVELOPERS! 
This post is for beginners like me who just want to ROOT phone BUT need some little help step by step
I used link to TUTORIAL "how to install easily Google ADB driver using PDANet install" :
http://www.thespicygadgematics.com/2012/05/easily-quickly-install-android-adb.html (thanks to LAUTON for the link)
It was very EASY and QUICK = My phone is reconized by Windows XP and now it is ROOTED !
HOW TO ROOT PHONE:
- Download MTK6575 phone drivers + ROOTtool zip archive (
https://docs.google.com/open?id=0B96pdh3MCBWgWmdnc25jRThTXzA ) and unrarchive directory on your Computer desktop (you will have two DIRECTORIES + "TUTORIAL" file)
- Take your phone and Set USB DEBUGING "ON" in developers options parameters + Set SIM CARD PIN as "OFF" in the security parameters
- Shut down your phone + take out the battery
- Plug phone to computer with USB cable and put battery back
- Windows will find an "Android Phone Preload" and ask you if you want to automatically install drivers, select manual installation and find the drivers in the directory "STAR_N8000+HAIPAIi9220_Phone_USB_Drivers" on your desktop.
- When drivers installation succed, UNPLUG the phone and TURN IT ON
- Keep your phone ON and connect it again to your Computer
- Install PdaNet using the tutorial :
http://www.thespicygadgematics.com/2012/05/easily-quickly-install-android-adb.html
- When PDANet ADB drivers installation finishes you can run "TPSparkyRoot.bat" file from directory "ROOTtool"
- For every message wich ask you to "click to continue", LET THE PHONE COMPLETELY RESTART (process will ask you 3 TIMES and the phone will restart 3 TIMES)
- Phone is now ROOTED, you can disconnect it and enjoy
If process doesn't success, run again file "TPSparkyRoot.bat" (i needed to run root process 2 times because i didn't let phone completely start before clicking to continue root process)
Don't forget to set back SIM card PIN to "ON" in security parameters
HOW TO IMPROVE (a little) BATTERY LIFE : (thanks to MICKEYSTEELE for tips)
- Download and install SetCPU :
https://play.google.com/store/apps/details?id=com.mhuang.overclocking&feature=top-paid
- Set GOVERNOR item as "ON DEMAND" bottom of SetSCPU parameters screen, in MAIN folder
- Select and activate "ON BOOT" (the bottom of the parameters page)
- Click on home button validate settings and return to desktop phone page
- RESTART your phone and enjoy
ps : battery life will be saved for a couple of hours, not a couple of days
HOPE IT WILL HELP !
(don't be cruel with my english...)