*2767*3855# I got this number to factory reset my spica but, actually I need to do 'recovery mode' to upgrade to gingerbread.
STEP 4: Now, you need to restart your Galaxy Spica in recovery mode. If you are wondering how to do it, then simply hold Volume Down button, Call button, and End Call button together while the phone is switched off, and your phone will get restarted in recovery mode.
I CAN'T DO STEP 4 IN MY SPICA, THEN I SEARCHED INFORMATION IN GOOGLE TILL I ARRIVED HERE AND TRIED *2767*3855#. I didn't get 'recovery mode' I just get factory reset.
STEP 5: While your smartphone is in recovery mode, choose Wipe data & cache option, when it prompts to choose any such options.
How to upgrade into GINGERBREAD?