Specifications

16
Security Codes on the GSM phones:
The phones are protected by two codes:
The UNLOCK code which consists of 4 digits (default 1234)
This is changed by typing MENU 51 and providing the security code. You can type in wrong codes
until you hit the right one.
The SECURITY code which consists of 6 digits (default 000000)
This is changed by typing MENU 54 and providing the old code. Again, you can keep hitting bogus
codes all day until you get the right one (hope you got some time to kill).
The SIM card is protected by 2 codes:
The PIN code (Personal Identification Number) which consists of 4 to 8 digits.
The PIN code can only be typed in wrong 3 times (you heard right...3). After this the SIM card will be
blocked until the PUK code is used. The PIN code is user definable. It can be changed by providing
the old PIN code or the PUK code. There is a menu for changing the PIN code by providing the old
one, but you can also type **04* in order to do so. To enter a whole new PIN on a blocked card or
without knowing the old PIN, you need to use **05* PUK (OK) NEWPIN (OK) NEWPIN (OK)
The PUK code (Personal Unblocking Key) consists of 8 digits.
This is set by the network provider and can not be changed. If entered wrongly 10 times, the card will
become permanently blocked and will need to be replaced.
Undocumented Menu shortcuts (7500, 8200, and maybe the 5200 and 7200)
Menu + XX
11 Status Review
13 Available networks
14 Preferred networks
21 Incoming call alert
22 Select keypad tones
25 Require SIM card PIN
26 Language selection
32 Repetitive timer
33 Single alert timer
34 Show meter during calls
35 Resettable call meters
36 Resettable call meters
37 Set call cost rates
38 Reset all meters
41 Keypad dialing (call restrictions)
43 Restrict incoming calls
44 Phone number length
51 Change unlock code
52 Master reset
53 Master clear
54 New security code
55 Automatic lock
63 Battery saving mode