Hidden Things
Most mobile phones have features hidden from their users. Special functions for service, testing etc. The T39 is no exception to the rule, and on this page I will present the ones I've found out about on other webpages.
Service menu
By pressing the following key sequence, a service menu is brought up.
rightarrow * leftarrow leftarrow * leftarrow *
The service menu has the following structure.
Service
1 Service info
1.1 SW information
1.2 SIMlock
1.3 Configuration
2 Service settings
2.1 Contrast
2.2 Select flip
2.3 Select speaker
3 Service tests
3.1 Display
3.2 LED/illumination
3.3 Keyboard
3.4 Buzzer
3.5 Vibrator
3.6 Earphone
3.7 Microphone
3.8 Real time clock
3.9 Flip counter
4 Text labels
Personalize
WARNING! Be careful. This is the menu that enables locking the phone to a specific operator. And there is no easy way back if you screw up.
By pressing the following key sequence, a "Personalize" menu is brought up.
leftarrow * * leftarrow
The service menu has the following structure.
Personalize
1 Network
2 Network subset
Easter Egg
Small, hidden things, often with a funny twist, in computer software are called Easter Eggs. The T39 has a really nice one, the classic Snake game. Hiding a game as an easter egg in a phone with very limited amount of memory is actually quite cool I think. Here's how to get to the hidden Snake game.
1. Start the game Erix
2. Press 7
3. Press 8
4. Press 9
The game starts, control the snake by pressing 7, 5, 9 or 0.
