Warning: Doing this at own risk – You have been warned. If your phone bricks I can and will not be held responsible. – Credits goes to u669983 @ xda-developers
1) Download the following files to the root of the SD card:
2) On phone: Got to Settings → General → About , Reboot Recovery click OK, wait a minute, the phone automatically goes into the flash native mode.
3) Bootloader mode, there will be a triangle and an exclamation point, there is a robot, English menu, just press the volume key.
4) The volume “+” key = up, volume “-” key = down , power button = OK . Select second-line option then apply update from sdcard to “will see the files in your SD card.
5) Find GooPhone-Y5-Root.zip, click OK, the phone will show a progress bar, after 10-20 seconds you will automatically return to the menu.
6) Return to the main menu, select the first option “ reboot system now “. The phone will restart. ROOT success!
Description: The Root-procedure applies to GooPhone Y5, GooPhone I9220, GooPhone 4GS_3G, GooPhone 4GS and GooPhone 4S
Good luck.. And remember.. You do this at your own risk.
Translation of the Chinese Recovery: