How will i get network lock control key on my Samsung galaxy Gt-19003

Thank you for providing all the info! Greatly appreciated!!
Now on to a solution. You can try to do a factory reset. You don't need to log into the phone in order to do one. However, this WILL erase everything on your phone, and revert it back to when it was originally purchased. Not sure if the unlock will remain.

To do a factory reset:
1) Turn off your device
2) press the power button and the volume up button simultaneously until it takes you to a new menu.
3)Use the volume keys to navigate, and the power button to select (Exact directions are provided on the screen)
4) Look for an option to "Wipe/Factory reset" (Note: It might be located in a sub menu, and not actually on the first screen.)
5) Select that option and press the designated "OK" button. (usually the power button).
6) Phone will reboot and you should be able to get back in.

Hope this helps!!

1. first press Up Volume Key on phone and hold it on lock screen.
2. then press on the home button and hold it.
3. Last the power button and after it starts up just release it.
4. A menu will come up.
5. just click on home button to select up and down in the menu.
6. go to third option named as "DELETE ALL USER DATA".
7. It can take up to a couple minutes.
8. the phone will restart and the unlock pattern problem is fixed.
   *note this will reset phone to factory settings, but it will allow you to access it again.

Do you mean the network unlock code? I suggest you can approach Mobile-unlocker.com and specify the country,locked network of Samsung GT I9003.Based on the availability you can get the unlock code along with free instructions.

I have bought a Samsung Galaxy S GT i9003 phone. it was working fine one day i changed the sim and saw there was no network and the emi is gone and if i put any kind if sim the network is not comming please let me knw wht is the exact problem give me the solution for this

Samsung gt- i9003 back & option button not working pleas halp

when i call it gets no network available

This is controlled in your settings menu under 'Fixed Dial'. (or similar command). You will need to change this setting.

I do not have a copy of the user guide for your phone but for most phones these are the directions:

When you turn on fixed dialing, you
can call only numbers stored in the
fixed dial list.
Turn fixed dialing on or off:
- > Settings > Security > Fixed Dial
Use the fixed dial list:
- > Settings > Tools > Dialing Services
> Fixed Dial

If you download a application from market named "History Eraser" that can do the job for you.
erase market searches, internet searches and much more

The only way to get around this is run the recovery

How to do this
1. Turn off the phone
2. Told down the UP Volume button and power button
3. Wait till the screen comes on and then off
4. A menu shows up and click restore/recover
5. The password is gone.