I have a couple of Blackberry Storm 9530's that are stuck in CAL mode.
I read the forums thoroughly and did as advised "press mute/esc/sleep/menu then it should go to error 507"
I tried this many times
I tried doing this and removing the battery many times
I tried doing this without the sleep button (lock button)
I've seen CAL mode on many keypad blackberrys and you just type start, get your error 507 and reload the os and are on your way but this has me baffled.