haier D1200P - Manual (Page 84)

suggested that you change this code immediately.
Q. How to change the RUIM Lock?
A. Settings
Security Enter Lock code (By Default lock code is 000000) PIN
Management Change PIN Enter old PIN (By Default PIN is 1234) Enter
new PIN Repeat new PIN Ok
Q. How to enable RUIM Card Lock?
A. Settings
Security Enter Lock code(By Default lock code is 000000) PIN
Management Enable PIN Enter PIN (By Default PIN is 1234) Ok
Q. How to disable the RUIM Lock?
A. Settings
Security Enter Lock code (By Default lock code is 000000) PIN
Management Disable PIN Enter PIN (By Default PIN is 1234) Ok
Q. How do I increase the volume of the phone ringer?
A. Profiles
select any mode Edit profile Ringer volume select High
Q. How do I change the ringing tone?
A. Profiles
select any mode Edit profile Ring tone select any music Ok
Q. How do I view the last dialled numbers?
A. Press the call key to select the last dialled call.
Q. How do I assign a key to speed dialling?
A. Names
Speed dial Options Set entry Select number from names lists
80