This phone's keylock, by default, can be unlocked in two ways: By sliding out the full keypad or with a two-button sequence on the exposed buttons. The problem I have is that the two-button sequence is too easy; the phone often becomes unlocked while sitting in my pocket and I've made $20-30 worth of accidental calls over the last few months.
I can't find any obvious way to change the unlocking sequence. I'd be happy with changing it so that only sliding the keypad out unlocks it, but I can't find any way to do that. Alternatively, if I had to enter a specific code, I could cope with that too.