How to Unlock a Samsung D800 Mobile Phone for Free

1. Get the unlock code for your Samsung D800. Your current cellular-service provider will give normally give you the unlock code for your phone if you have an active account that is in good standing.
2. Purchase a SIM card from any GSM cellular-service provider worldwide.
3. Remove the back cover and battery from your phone.
4. Take the existing SIM card out of the phone and replace it with the new SIM card you purchased in Step 2.
5. Replace the battery and back cover and power on your Samsung D800.
6. Type '#7465625*638*CODE#' without the quotation marks using the keypad on your Samsung D800. Replace 'CODE' with the unlock code from Step 1. Your phone is now unlocked and will work with the new SIM card.