Samsung SCH i830 - Manual (Page 113)

Section 8: Changing Your Settings 113
Phone Settings (GSM)
Sect
ion 8
2. The Personal tab is highlighted. Tap Service Mode. The
following options appear in the display.
• Int’l GSM
• VZW CDMA
3. Tap desired mode of operation, then press OK. A
dialogue box appears in the display asking if you wish to
reset modes.
4. Type Yes and press OK. Tap Cancel to return to the
previous screen.
5. If you pressed OK, the phone restarts and powers up in
the selected mode of operation.