How to : hard reset Samsung I9000

1. PRESS AND HOLD VOLUME UP + Home Button
2. Keep pressing these 2 buttons + press Power button for 2-3 Seconds
3. Release only power button, but KEEP pressing Volume up + Home Buttons
4. With Volume down select wipe data/factory reset (3rd) > Press Power to select.

Some say in US hardware/phone with EU firnmware version has changed VOLUME UP to VOLUME DOWN key. Try that trick too and leave comment below.

OR Try

1. Turn off the i9000 phone or take out the battery and reinsert it.
2. Hold the Volume Down button
3. Press and release the Power button
4. Select Clear Storage by pressing the Volume Down button
5. Press and release the Power button6. Press Volume Up to confirm i9000 master reset