Samsung: unlocking U700 & F300

ref unlocking U700 & F300

Note : As mention in the listing these code works around 90% times so we cant guarantee for 100% unlocking.

Here are the instructions to unlock the phone.

To Unlock Samsung F300 & U700:

General Warning
Before using the instructions below it is highly recommended that you back up any telephone numbers and ringtones you may have added to the handset's memory. In some cases your handset may reset to the original factory settings.
We accept no liability for any damage or loss of data your handset may suffer in the event of using these codes.

Unlock Code
#*7337#
Entering Code instructions
1. Take out the SIM card from the phone and switch the phone on.
2. Enter the unlock code into your handset.
3. Now replace your SIM card and turn the phone on.
4. Your handset should now be unlocked.

Unlock Codes
Code 1: *7465625*28782#
Code 2: *7465625*28638#
Entering Code instructions
1. Remove SIM Card from handset
2. Enter Code 1 into the handset
(Your handset will display "auto subset lock activated")
3. Enter Code 2 into the handset
4. Your handset should now be unlocked.
a) Enter an alternative network SIM card into your Samsung and reboot.
The new network should be displayed in handset window.
c) If the process is repeated with yet another alternative network SIM card, you may be requested to input a security or pin code to enable the use of the new SIM card.
d) Enter 00000000 (8 zeros) which should enable the SIM to be accepted.
e) Finally once again enter 00000000 (8 zeros) and this should permanently unlock the Samsung.

Final alternative Solution if the above fails
Unlock Code
#7465625*638*7337#
Entering Code instructions
1. Take out the SIM card from the phone and switch the phone on.
2. Enter the unlock code into your handset.
3. Now replace your SIM card and turn the phone on.
4. Your handset should now be unlocked. Read More!