Have you blocked your phone or does your phone come with a phone lock to stop people going into your files? If you have locked your phone you can go to your carrier's website ( e.g. T Mobile, Vodafone etc) and search for it there, it is often called a PUK code. If your Samsung phone came with a phone lock than take it to your nearest carriers' shop you can get advice there. Although DO NOT keep trying to enter the code when you don't know it, this could cause the sim card to block itself and request you to enter a PUK or IMEI. Which stops you from getting into your phone until you have unblocked it.
Hope this helps!
you unlock it by holding down the lock/power button
You can unlock your phone by using unlock codes. You can get codes from many online services.
samsung GT c3303k phone lock
reset phone lock
phone lock
s5200 samsung mobile lock
buy a new phone
The phone lock on the Samsung GT-S3350 can be reset by opening the phone and going to options and then security. Set phone security will prompt one to enter a new code twice. Once this is done successfully, the new code is in place.
samsung 3500i
Lost my phone lock code. Is there a master reset #?
i go to settings under security setttings then click phone lock enable
samsung sgh f400
To reset the phone lock on the Samsung Galaxy s2 go to the settings section and select password options. then select password reset and enter your current password followed the password you would like to change it to.
Hold the lock button for 5 seconds.