Samsung I7500 Galaxy Android hard resetPress and hold Volume DOWN + CALL + END CALL buttons, then choose wipe data / factory reset press MENU button.
Settings > SD card & phone storage Factory data reset: Reset the device to delete all your data and restore your settings to the factory default.
Use this method to hard reset your Samsung I7500 Galaxy Android phone: Enter *2767*3855#. Warning! All your data including contacts, messages etc. will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM or make backup to your PC before full reset! Take out SIM card before full reset.Try firmware update using Samsung New PC Studio tool.
If you know the hard reset using buttons / keys, pls leave a comment. All comments are welcome! :)