For PS3, PS Vita, PSP or some mobile phones, use a device setup password the first time you sign in to Sony Entertainment Network from that specific device. Then whenever you sign in after that, you can use your account password as usual.
PS3,PSV,PSP,PSTV第一次登陆需要当前设备的设备码,之后就可以和以前一样用账号的密码登陆