How do i hard reset my samsung a777 phone to bring back sound?

SOURCE: how to unlock samsung cell phone from at&t

hi, as far as my experience has thought me unlock codes are the best method to unlock your phone, i used codes from http://www.onlinegsmunlock.com/ and http://www.mobileunlockguide.com/ to unlock my phone and it worked well jus check if your phone is listed for unlocking

SOURCE: how to hard reset or

Hi,

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

1. While in standby mode, press the right soft key for Menu
2. Select Settings (9)
3. Select Reset Settings (8)
4. Highlight, using the navigation keys, any of the following:
• All: Sound Profile, Display, Phone, Alarm and Bluetooth settings will be returned to default values
• Sound Profile Settings: Only sound profile settings will be returned to default values
• Display Settings: Only display settings will be returned to default values
• Phone Settings: Only phone settings will be returned to default values
• Alarms: Only alarm settings will be returned to default values
• Bluetooth: Only Bluetooth settings will be returned to default values
5. Press the key to check the box(es) of the desired Reset Settings
6. Press the left soft key for OK to set the Reset
7. Enter the password, using the keypad, default password is "0000"
8. Press the left soft key for OK
9. If prompted, Enter the password again to confirm, using the keypad
10. Press the left soft key for OK
11. Press the left soft key for Yes to reset the handset's settings to the factory defaults

SOURCE: i need to get a

Please Dial *#7370# or Dial *#7780#

SOURCE: hard reset samsung A777

you can contact the mobile service provider.........

SOURCE: i need to know what a puk code is for a samsung a777 phone

PUK stands for Personal Unblocking Key. This is a uniqueeight-digit code specific to your SIM card. This is required when the PINnumber to unlock your mobile phone is entered incorrectly 3 times. You are thengiven 10 attempts to enter your PUK code. If an incorrect PUK code is enteredafter the 10th attempt, you will block your SIM card permanently and willrequire a new SIM card from your mobile phone provider.
PUK codes can be obtained through the following ways -The PUK code is in your SIM card documentation Starter Pack.If you do not have this then -Please contact your phone service provider.
Your cell phone service provider can give you the PUK code once you give themyour account details and they have confirmed your identity.For details to obtain the PUK code for the SIM card, pleaseclick on this link and follow my instructions.
http://www.fixya.com/support/r5705889-puk_code