Sony CLIE PEG-TJ35 - Manual (Page 170)

Protecting your data with a password 170
Locking your CLIÉ handheld with a password (Data protection)
3
Follow “Assigning a password” on page 172 to assign a
password.
4
Tap [Lock & Turn Off...].
The System Lockout screen is displayed.
5
Tap [Off & Lock].
Your CLIÉ handheld turns off and locks.
To turn on your CLIÉ handheld, you must enter the correct password.