Motorola v550 ユーザーガイド

Convert currency:
M > Office Tools > Calculator

M > Exchange Rate
Enter exchange rate, press OK (

+), 

enter amount, press 
M > Convert Currency.

Lock or unlock the SIM card:
M > Settings > Security > SIM PIN
Caution: If you enter an incorrect 
PIN code 3 times in a row, your 
SIM card is disabled and your 
phone displays SIM Blocked.

Lock phone applications:
M > Settings > Security 
> Lock Application

Enable or disable security 
certificates stored on your phone:
M > Settings > Security 
> Certificate Mgmt