Hi, I have a samsung sgh-A197 that needs a password to unlock it. I don't remember that password. How can it be unlocked? THANKS,

You can unlock your phone by network unlock code.If you need an unlock code visit ClassicUnlocking.com Here you can unlock your phone at low cost.

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You cannot able to get free unlock code for Samsung SGH A197 model phone.You need to pay to get unlock code.Visit the site Unlock-zone.com
get unlock code at low cost and unlock easily.

You can get an unlock code for your Samsung SGH-A197 mobile phone from Onlinegsmunlock.com .Here you have to specify your country name,the current network provider and IMEI number of your mobile phone.Then you can get an unlock code from them at reasonable cost and unlock it.

Try code from Online site..........

To Unlock the samsung SGH A777 model Phone use the Unlock code ..get the Unlock code from here Onlinegsmunlock
and Unlock it from Network Lock...

Samsung SGH-A777 Unlocking Instructions Warning : Do not enter any wrong unlock codes on your Samsung SGH-A777 mobile phones. If you enter over a certain amount of wrong unlock codes on your Samsung SGH-A777 mobile phone, your phone may get hard locked and sometimes become unusable.
Method 1:

1 - Switch ON your Samsung SGH-A777 with a NOT ACCEPTED SIM Card.
2 - Samsung SGH-A777 will ask for "Password".
3 - Enter the Unlock Code.

OR (if the Samsung SGH-A777 shows "Insert Correct SIM Card")

Method 2:

1 - Switch ON your Samsung SGH-A777 with a NOT ACCEPTED SIM Card.
2 - Don't bother about what's being displayed on your Samsung SGH-A777.
3 - Compose : #0111*CODE#.

NOT ACCEPTED: We mean, to use a sim card from a network other than the network your Samsung SGH-A777 is locked to.
CODE: Its the unique Unlock Code for your Samsung SGH-A777.

If method 2 does not work, you can try method 2 again but this time wi

You can get samsung sgh-x510 imei unlock code from your network provider or buy from third party sites. But always remember don't use free samsung unlock code from forum or untrusted source, since that unlock code usually is a fake one and can't unlock your phone.

http://www.foneszone.co.uk/unlock/how_to/Samsung/A197.php
Understand the meaning of unlocking a mobile If you put another simcard into your Samsung A197 phone and it does not allow you make calls with it, then your Samsung A197 is simlocked. If your A197 phone is "simlocked" when you put an alternative network simcard in your phone it could show "enter correct sim", "enter subsidy password", "wrong sim", "incorrect sim" or similar. If you want to use your A197 phone with another simcard then you will need to unlock your phone. There are some small considerations you need to make sure before you start such as simcard compatibility and making sure that your phone is definately "locked" not "blocked" there is a distinct difference! Is your Samsung A197 Locked or Blocked? A locked Samsung A197 means that your Samsung A197 phone ONLY accepts simcard from the network it was purchased with. This is easy to solve, we can supply codes that can fully "unlock" your Samsung A197 phone to all networks. This means that your Samsung A197 phone can then be used on ANY chosen network in any compatible country, WORLDWIDE. Alternatively a Blocked phone is a phone that has been reported lost or stolen, and has been blocked by the network for use. These phones are unusable and there is no way around this. Unblocking a phone is ILLEGAL and we offer no service for this.