Samsung SCH-U520ZNAUSC - Manual (Page 160)

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Version
You can view both the software and hardware version of your phone using this
feature. This feature is helpful if you need to contact Customer Service.
1. In standby mode, press the MENU key ( ), then press (for
Settings), and (for Phone Info) and for Version.
Your phone’s software (S/W), preferred roaming list (PRL), easyedge SM
(Easyedge), and hardware (H/W) information appears in the display.
2. Press to return to the Phone Info menu.
OK
OK