Sony Ericsson K810i Blue Smartphone "g900 factory reset" Questions

program some freezes and only alternative is restarting. factory reset should help. my g700 freezed many times on the day and i get it to service, they gave me a new phone, g900. sorry for bad english

...g900 unit always turning off or reboot and the color of the wallpaper becomes dark. anyone, please help... reboot can mean it that some program freezes and only chance is rebooting. i can´t help ...

...factory reset thru menu>>settings>>master rese did not work. i was advice to have the manual reset but i need to have the reset codes for the phone. thanks. Please get it ...

factory setting and enter code 0000. SIR I VE G900 SONY ERICSSON MOBILE.CAN U TELL ME HOW TO RESET,FORMAT PHONE?SIR THERE IS SOME CODE FOR RESET. gima ya sony aq gk mau di buka phon lock nya..bantuan