Sony READER TOUCH EDITION PRS-650 - Manual (Page 93)

Changing Settings
9
Table of Contents Index
[Device Lock]
Locks the Reader by setting a pass code.
Tap [On] to set a pass code.
Input a 4-digit number by tapping the numeric key
pad.
Tap [OK] to lock the Reader.
To unlock, input the pass code and tap [OK]. Then tap
[Off] to unlock the Reader, and tap [OK].
Notes
 [0000] is the factory setting.
 You are recommended to make a note of your pass code
and keep it in a safe place separate from the Reader.
 If you forget your pass code, contact your Sony Customer
Support (  18 ); however, note that in unlocking your
device, all content on it will be erased.
 When the [Device Lock] setting is activated, the Reader will
not be recognized by your computer, please set to [Off]
before connecting.