I have the same problem

try this, it should work for the samsung sgh-a137. First insert the T-Moble SIM in phone, at WRONG CARD screen ENTER on the keypad
*2767*3855# (wait 10-15 seconds) phone will reboot(restart)
When phone completes reboot ENTER
*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

Try All this you can do...

*7465625*746*Code# = Enables SIM lock
#7465625*746*Code# = Disables SIM lock
*2767*2878# (Temporary Unlock)
*7465625*638*00000000*00000000# (Set Code)
#7465625*638*00000000# (Clear Network Lock)
*#7465625# (Verify the network lock is “inactive”)

*2767*3855#
*2767*3855# - FULL E2P RESET
*2767*2878# - CUSTOM E2P RESET
#*7337# - UNLOCK
*2767*688# - UNLOCK
*#0523# - CONTRAST
*#9998*523# - CONTRAST
*#8999*8378# - Service Menu (X100)

First with different carrier SIM in phone at WRONG CARD screen ENTER on the keypad
*2767*3855# (wait 10-15 seconds) phone will reboot(restart)
When phone completes reboot ENTER
*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


Comments: Dec 07, 2007 - by DRSS - My FRND,

you need to go to the mobile repairer and you have to done flashing on your mobile...

THANKS

pls check that with the another handset still your facing the same problem pls check the sim card with the service provider

Your phone may have been blacklisted if you're using it on the same provider for which it was made. Call your provider and give them the IMEI number which is on the back behind the battery to ensure that it's clear. If it is clear, then your SIM card may be bad. Try a friend's SIM card to test.

sir please check your sim adapter

sorry to say the phone was not unlocked what you should do is try online at topsony.com.

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.

you could try this

By doing the reset (1st temp) you will lose all your
data ie contacts, messages, photos, videos etc etc so
back them up on your pc first.
Take out your sim card and follow the instructions below :
1st temp. put this number in the keypad
*2767*3855# let it reboot(restart)
now its ready for permanent.
Put in a sim card of a network that the phone won't
except and follow the instructions below.
( If you can't type anything with a locked sim
card inserted just take it out and do the next
step without a sim card in the phone)
Don't worry if your screen shows - - - - - - - when typing
it is supposed to do this.
Permanent.
ENTER :
*7465625*638*00000000*0000000
0#
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
Enjoy !
This procedure does not change your imei number at all

the firmware need to be flash again in the phone this can be done online at topsony.com or take the phone to a mobile service center to have it done.

Try All this you can do...

*7465625*746*Code# = Enables SIM lock
#7465625*746*Code# = Disables SIM lock
*2767*2878# (Temporary Unlock)
*7465625*638*00000000*00000000# (Set Code)
#7465625*638*00000000# (Clear Network Lock)
*#7465625# (Verify the network lock is “inactive”)

*2767*3855#
*2767*3855# - FULL E2P RESET
*2767*2878# - CUSTOM E2P RESET
#*7337# - UNLOCK
*2767*688# - UNLOCK
*#0523# - CONTRAST
*#9998*523# - CONTRAST
*#8999*8378# - Service Menu (X100)

First with different carrier SIM in phone at WRONG CARD screen ENTER on the keypad
*2767*3855# (wait 10-15 seconds) phone will reboot(restart)
When phone completes reboot ENTER
*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