How to take off lock sim - AT&T Cell Phones

Call your cellphone service provider.

Do you want to break sim lock in your modem to use other network sim card or you need to break sim security lock?
If you want unlock Modem from Sim lock use unlock code.Visit the site Mobileunlocksolutions.com get unlock code and unlock it.Then you can use any GSM network sim card in your modem.If you want to unlock from sim security lock try default codes.You can get from user manual or search online.

If the Samsung Mobile says Sim lock means it's locked to network...You can get the Unlock code from the site Unlocking4free.com/samsung-unlock-tool
and unlock it from network lock ....

There are two types of Sim Lock,One is Network Sim lock,another is Sim Pin lock ,Sim Pin lock can be Unlocked using the default code get from service provider....To get the Network Unlock code reach here
Unlocking4free and Unlock it...

there is one option in the mobile Sim Lock..
i think your doughter hit Sim Lock option.
don't enter the wrong pin code because as you enter the wrong PIN code 5 times Sim will block
Sim lock having the same password as your phone password
default password is given in the guide book of mobile
see it from there & open the sim lock
if you don't want the same problem again then go to the settings there is one lock option ... hit on the sim lock ... then off it.. the lock will not appear in future..

if satisfies with the answer given by me
vote me

Hi Friend,
Kindly note down the below steps,

Unlock Method for SAMSUNG PROPEL A767. No Cables or Software Needed.

1. Turn mobile phone on with unaccepted sim BUT NOT FULLY INSERTED (only push it half way into sim slot).

2. Insert unaccepted sim to phone (push the sim fully into the sim slot).

3. Input *2767*3855# and phone will reboot and will be temporarily unlocked.

4. Input *7465625*638*00000000*00000000#

5. Input #7465625*638*00000000#

6. Input *#7465625# to check the locks....all locks should now be inactive as or similar to below:

network lock - inactive
subset lock - inactive
sp lock - inactive
cp lock - inactive
sim lock - inactive
activa lock - inactive
phone lock - inactive
auto network - inactive
auto subset lock - inactive
auto sp lock - inactive
auto cp lock - inactive
auto sim lock - inactive

Check and revert back

Regards,
Ayyasam

A. Turn on phone with full battery and non-T-Mobile SIM in place.
Allow phone to completely boot up to Wrong SIM screen. B. Enter from Wrong SIM Screen *#7465625# to confirm lock status C. Scroll through Interrogate Screen 1. Network lock - Active (this is the one you'll be deactivating)
2. Subset lock - inactive
3. SP lock - inactive
4. CP lock - inactive
5. SIM Card lock - inactive
6. Activa lock - inactive
7. Auto network lock - inactive
8. Auto subset lock - inactive
9. Auto SP lock - inactive
10. Auto CP lock - inactive
11. Auto SIM Card lock - inactive
12. Phone lock - inactive D. Push "C" button under navigation button to clear Interrogate screen back to Wrong SIM
screen E. From the Wrong SIM screen enter the following: *7465625*638*00000000*00000000# Those are two series of eight zeros. The phone will not show the zeros but will show dashes in their place. Phone may make a small tone and at the bottom of the screen it will read "Network Personalized" or perhaps "Network Already Personalized" F. Now input the following from whatever screen shows up: #7465625*638*00000000# (again this is a series of eight zeros) Phone may make small tone and will read "Network Lock Deactivated" G. Turn off phone
H. Re-start the handset and allow it to reboot.
J. Enter from Standby Screen *#7465625# to confirm lock removal status K. Scroll through Interrogate Screen 1. Network lock - inactive (note that this lock is now inactive)
2. Subset lock - inactive
3. SP lock - inactive
4. CP lock - inactive
5. SIM Card lock - inactive
6. Activa lock - inactive
7. Auto network lock - inactive
8. Auto subset lock - inactive
9. Auto SP lock - inactive
10. Auto CP lock - inactive
11. Auto SIM Card lock - inactive
12. Phone lock - inactive
That's it. Your phone is ready to accept SIM cards from just about any GSM mobile telephone service provider in the world. If you received a "wrong password" message you will need to insert a working SIM and reset the password to the default 8 zeroes "00000000". After that you may try this process again and it should work.

Please try these codes. This might work fine for any sim...

*7465625*638*00000000*00000000#
NEXT ENTER
#7465625*638*00000000#
AND THEN *#7465625# to check the locks....all locks are inactive...these are all the locks...
network lock - inactive
subset lock - inactive
sp lock - inactive
cp lock - inactive
sim lock - inactive
activa lock - inactive
phone lock - inactive
auto network - inactive
auto subset lock - inactive
auto sp lock - inactive
auto cp lock - inactive
auto sim lock - inactive

Hope this works.Thank you.

my sumsung E250i doesnt open sim lock please give me a code

sim code unlock