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Ericsson T28 Unlock /Secret Codes |
Ericsson
T28 Secrets
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*#06# : For checking the IMEI (International Mobile
Equipment Identity)
*#0000# : Resets the phones menu-language to English.
*#103# followed by 'YES' : Time and date will be shown.
>*<<*<* : Checking the firmware revision
information (software release)
>*<<*<*> : 1-row text strings. By pressing
"yes", you can check the phones text programming
in currently selected language. (298 entries)
>*<<*<*>>
: n-row text strings. By pressing "yes", you
can check the phones text programming in currently selected
language. (160 entries).
The Service
Provider Lock
The Service Provider (SP) Lock menu is used to lock
the cell phone to the SP's SIM card. Once the cell phone
is locked to a specific operator, if one inserts a SIM
card from a different operator the phone will refuse
to accept it. The cell phone will however accept another
SIM card from the same operator.
To activate/deactivate
this lock one needs a special secret code that is not
available to the end user.
Here is
how to activate the menu :
<**< Lock to Network? By pressing "yes",
you have 5 attempts to enter NCK.
<**<< Lock to Network subset? By pressing "yes",
you have 5 attempts to enter NSCK.
Warning:
Your phone can be locked to a service provider FOREVER
by doing this! If an invalid code is entered all five
times, the menu will exit and be deactivated! Any further
attempt to activate the NCK/NSCK lock Menu will result
in the response "Not allowed"! However the
NCK/NSCK lock can be recover through a direct clearing
in the EEPROM.
Shortcut
for Last Dialed call menu
If you for some reason don't want to enter the 'Last
Dialed calls menu' by using the 'YES' key you can use
the following key stroke instead :
First '0' then '#'.
Message
Report
When you are writing a SMS message, place at the start
of it the code *0# and continue with your message. It's
job is like the Nokia's Delivery Report. It gives you
important information about the sent message.
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