Does anyone know a code or how to unlock a virgin mobile phone so i can can use a o2 sim card ?what v-key?? and where i find it ?

mine was my cell phone number when i had it or your v-key

you can always try contancting virgin customer services direct to try & get the unlock code but they might charge you for doing it alternately you could always take it to a local shop or market stall & pay to get your fone unlocked