Question about Samsung SGH-U600

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Sim Card lock to Samsung phone

I have samsung phone that my sim card to locked to. I have forgotten the password. Whenever the sim card that the phone is locked to is inserted the phone works, if I insert another sim card it wont work. I want to reset the password, however, I cant remember the password. Please can you assist me.
Much appreciated.

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  • sarzii May 13, 2008

    my sim card is locked and i have forgotten me password. i also need to know what my PUK number is

  • Anonymous Dec 24, 2008

    red phone

  • asber
    asber Jan 21, 2014

    PUK is normally provided by your network provider, if you bought your sim, the pin and the puk is written on the back of the simpack, all you have to do is scratch the foil like opposite to your pin 1 and the puk is visible, if however the sim is given by your friend or your relatives, try to contact your network operator and ask to give you your puk code, just make sure to give them also the serial number of your sim.

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  • Samsung Master
  • 291 Answers

Try this *2767*3855# without the sim, but back up your contacts stored in your phone storage first.
Goodluck

Posted on Aug 29, 2016

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SIM LOCK PASSWORD

Posted on Apr 24, 2016

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  • Expert
  • 48 Answers

The phone need to re format the software .. you just need a technician to re programmed the unit.. so that all the original file or data be reseted

Posted on Mar 28, 2008

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You should be able to reset this by turning on the phone without the SIM card inside, then entering *2767*2878# and waiting for the phone to reset. Once it starts up, the code should be gone from the phone and you should be able to get into it again.

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Password


hi
Try with all the code to see whether you can get one to unlock your phone. If all still cannot help then you can only contact Samsung Support for help. I hope these information below at least can give you some hints:

Note try codes which help direct unlock for either SIM Lock or Security Lock first before try other codes

*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

Good Luck

Feb 22, 2008 | Samsung SGH-U600

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