Question about Samsung SCH-R400 Cellular Phone

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I switched my phone to nam2 and now I'm locked out

I've tried every code that I can think of and still no luck.

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  • 58 Answers

1121 that should work..

please rate :)

Posted on Sep 25, 2009

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Posted on Jan 02, 2017

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4 Answers

I have a samsung reality. i was fooling around with the settings & set it to NAM2. it's now locked i need a 4 digit code. i've tried all the online suggestions nothing works. i've been up for 4 hours...


Using the default "last four digits" unlock code will not work because switching to NAM2 changes your phone number, and hence changes the default unlock code. You have to find out your new phone number (and new unlock code) under NAM2. Do this:

  • Get to the dialer screen.
  • Dial #43574357* (#helphelp*)
  • Tap "1. system info"
  • The top two entries, MIN and MDN are your new number. Usually they are invalid phone numbers (000-000-????) but the last four digits are your unlock code. Write them down or remember them.
  • Get back to the unlock screen, type in the code.
  • Go directly into the menu and change back to NAM1
  • Don't do that again. :)

Sep 17, 2010 | Cell Phones

1 Answer

Switched to NAM2 and do not know the lock code.


Dial *22899 and press SEND to program the phone.
after it has finished downloading the programming information, the phone will reset.
The Lock code will now be set to the last 4 digits of your phone number.
when you have finished, be sure to switch back to NAM1 and dial *22899 again to re-program it.

Sep 30, 2009 | Samsung SCH-u740 Cellular Phone

2 Answers

Locked and cant get in


try the last 4 digits or ur number orr! 0000

Apr 14, 2009 | Samsung Hue (SCH-r500) Cellular Phone

1 Answer

I was locked out of my phone and its in nam2!! HELP!!!


Call your phone company, Users are not supposed to be able to change the Nam systems. They are the only ones who can fix it now. Sorry abou that, hope I was of some help.

Mar 19, 2009 | Cell Phones

2 Answers

Samsung Glyde security lock code.


slide open and dial #43574357* and tap system info and the code is the last four digits of the "MDN".

Dec 31, 2008 | Samsung Wireless Headset for...

5 Answers

Lock code for nam2 settings


Ok i sent an email to sumsung and i got this response

Thank you for your email. If you switched the NAM to NAM2 you will need to calculate the code. Listed below are the steps on how to do so:
1.Obtain the Hexadecimal ESN of the phone. The ESN should be printed on the sticker on the back of the phone, under the battery. The Hexadecimal ESN is the one with letters and numbers.
2.Open Windows calculator by going to Start -> Run -> type in "calc", then click OK
In the Calculator, click "View" then "Scientific".
3.Click on Hex and type in the Hex ESN
4.Click on Dec for the decimal conversion and use the last four digits for the code on the handset
5.Once the code is entered and the menu can be accessed, switch the NAM to NAM1

Jul 06, 2008 | Samsung Glyde SCH-u940 Cellular Phone

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