I don't know who's Samsung account was on there before I bought the phone and it needs that info to unlock the phone

SOURCE: Samsung SGH a727 forgot password to turn on phone

To reset the handset, to the factory default settings, follow the steps below:

1. While in standby mode, press the left soft key for Menu
2. Select Settings (9)
3. Select Reset Settings (10)
4. Highlight, using the navigation keys, any of the following:
• All: Phone, Display, Profile and Alarm settings will be returned to default values
• Phone Settings: only phone settings will be returned to default values
• Display Settings: only display settings will be returned to default values
• Profiles: only profile settings will be returned to default values
• Alarms: only alarm settings will be returned to default values
5. Press the center navigation key to check the box(es) of reset settings
6. Press the left soft key for OK to set the Reset
7. Enter the password, using the keypad, default password is “00000000”
8. Press the left soft key for Confirm
9. Enter the password again to confirm, using the keypad
10. Press the left soft key for Confirm
11. Press the left soft key for Yes to reset the handset's settings to the factory defaults
    

Mike Neath

• 315 Answers
• Posted on Oct 12, 2010

SOURCE: samsung galaxy android unlock..cannot unlock my

Hi, I have a couple of idea for you to try.
1) Log in to your google account on your pc, the same account you registered for your phone

2) After logging in look at the top right corner of your inbox/email page, it would say your google username. Like say if you name is John, and you have a google id thats registered to your galaxy s as , [email protected]. Now this google id on the top right corner of the page would be displayed as [email protected]

3) Type in the google id, thats visible on the right hand top corner of your page (like [email protected]) into your galaxy s handset locked page, and type in the password.

TADA AND YOUR ON TO THE NEW SCREEN TELLING YOU TO PUT IN ANOTHER PATTERN.
or theres this one:
Take out the battery, the sim card, and the SD card leave the phone for 2 to 3 hours like that.. Put everything back in and boot up the phone.. This should work.
You could try this instead of waiting 3 hours, just remove battery and press power on switch for 20 seconds but this may not work.
or if you've tried everything, the only other way would be to take it to a Samsung mobile phone shop.
or do a factory reset:
THIS WILL ERASE ALL YOUR DATA THOUGH
Go into recovery mode - vol up & home & power. Once in the menu, select factory reset.It may take you a couple of attempts to get to the recovery mode but it does work, just keep trying.

Regards
Mike

Prashant Sharma

• 1127 Answers
• Posted on May 19, 2011

SOURCE: I'm setting up my company

Hi

Please Click here find the setting in your mobile email account. if u have any query feel free contact me [email protected]

SOURCE: I forgot my unlock pattern

hi,


To unlock just Visite your nearest Samsung Service center They can unlock it & provide you new code

Regards,
Harish



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SOURCE: i don't know the samsung

Hi you can use codes to unlock the mobile .to get the unlock codes visit here
mobileunlocksolutions
Here they ask the following details before rendering the unlock codes they are
1. Mobile model
2. Country from where you brought the mobile
3. Provider to which the mobile is locked
4. Imei number of the mobile
Finally they will send you the unlock codes .once
you entered the code in your mobile as for the instruction
given by them .your mobile get unlocked and it accepts any network sim.