Booting to download mode is not supported from the power menu in a galaxy y
You also need to hold the home button
Turn phone off
Then hold Vol down & home button - with them held also hold power button
there's something called 'USB Jig', you can make that by yourself i think. I already did that, and this thing will force you to odin's mode.
it's done. My home button is broken. it must be pressed so hard to work.
btw,i used link2sd+link folder method with rootex. perfectly work by now. :laugh::good: