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Why so many lock codes?



 
 
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  #1  
Old June 23rd 07, 03:07 AM posted to alt.cellular.gsm
Bert Hyman
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Posts: 255
Default Why so many lock codes?

Why do GSM phones have so many different lock codes?

Of course there's the subsidy lock and PUK, but then there's the SIM PIN
and SIM PIN2, the lock code (often confused with the subsidy lock or SIM
PIN) and then the security code.

Everything I've read suggests that the SIM PIN and "lock code" are
intended to be used for the same thing, so why have both?

What were they thinking?

--
Bert Hyman St. Paul, MN
  #2  
Old June 23rd 07, 06:31 AM posted to alt.cellular.gsm
Simon Templar
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Posts: 452
Default Why so many lock codes?

Bert Hyman wrote:
Why do GSM phones have so many different lock codes?

SNIP
Everything I've read suggests that the SIM PIN and "lock code" are
intended to be used for the same thing, so why have both?

SNIP

They are all security features that you can choose to use or not use,
which makes sense with GSM being so flexible in allowing you to put your
SIM into other GSM phones.


--
The views I present are that of my own and NOT of any organisation I may
belong to.

73 de Simon, VK3XEM.
http://web.acma.gov.au/pls/radcom/client_search.client_lookup?pCLIENT_NO=157452
  #3  
Old June 23rd 07, 03:14 PM posted to alt.cellular.gsm
Bert Hyman
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Posts: 255
Default Why so many lock codes?

In Simon Templar
wrote:

Bert Hyman wrote:
Why do GSM phones have so many different lock codes?

SNIP
Everything I've read suggests that the SIM PIN and "lock code" are
intended to be used for the same thing, so why have both?

SNIP

They are all security features that you can choose to use or not use,
which makes sense with GSM being so flexible in allowing you to put
your SIM into other GSM phones.


Are some of these locks properties of the phone and some properties of
the SIM? If so, which is which?

In particular, if that was true of the lock code and the SIM PIN, it
would make more sense to me.

--
Bert Hyman St. Paul, MN
  #4  
Old June 23rd 07, 05:20 PM posted to alt.cellular.gsm
Donald Newcomb
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Posts: 90
Default Why so many lock codes?


"Bert Hyman" wrote in message
...
Are some of these locks properties of the phone and some properties of
the SIM? If so, which is which?

In particular, if that was true of the lock code and the SIM PIN, it
would make more sense to me.


Yes. The PIN and PUK are in the SIM. The PIN is what you use every day to
protect your SIM from unauthorized use. The PUK is what you use if you lock
the SIM by entering the wrong PIN too many times. If the SIM didn't lock
this way, someone who found or stole it could "brute force" their way into
the SIM.

Most of the other codes. Security, blocking, etc. are either in the phone or
in the network.

--
Donald R. Newcomb
DRNewcomb (at) attglobal (dot) net


  #5  
Old July 5th 12, 12:35 PM
mahesw mahesw is offline
Senior Member
 
First recorded activity by MobileForum: Jun 2011
Posts: 306
Default

nice question
i am here to explain you
security lock:
hi security lock id\s nothing that the lock code which you assign to lock your phone .if you forget the security code you can unlock it using reset codes
subsidy code or network lock:
network lock and subsidy are both same that is your mobile is locked to one particular network sim due to this it wont accept other network sim in it .to solve this you must unlock it there are many ways to remove the network lock in your mobile among them codes are the best method .

there are many online providers found that render codes to unlock mobile.i got my mobile unlocked to network at theunlockarena.com here they provide unlock code for all gsm mobile models along with the instruction about how to use codes in your mobile.
  #6  
Old February 28th 16, 02:26 PM
GaryM GaryM is offline
Junior Member
 
First recorded activity by MobileForum: Feb 2016
Posts: 2
Default

I think this is all for the security reasons.
192.168.1.100

Last edited by GaryM : April 4th 16 at 02:39 PM.
 




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