Step 1 of 10
Scroll to Settings.
Step 2 of 10
Touch OK.
Step 3 of 10
Touch OK.
Step 4 of 10
Scroll to Telephony.
Step 5 of 10
Touch OK.
Step 6 of 10
Scroll to Preferred network type.
Step 7 of 10
Touch OK.
Step 8 of 10
Scroll to the desired option, e.g., GSM/WDCMA preferred.
Step 9 of 10
Touch OK.
Step 10 of 10
The preferred network type has been changed.