HTC One M9 - Manual (Page 248)

Global Services 235
Global Services
With your phone and global roaming service from Sprint Worldwide℠ Wireless Service, you can
make phone calls and use wireless data services around the globe on compatible CDMA and
GSM/UMTS networks. For a country-specific travel guide, select your phone and destination from
sprint.com/traveltips .
Set the Communications Method for Global
Use
Select a communications method for an overseas carrier as needed.
1. Tap > > Settings > Mobile data.
2. Tap Network mode.
3. Select CDMA Only, LTE/CDMA, GSM/UMTS Only, or Automatic.
The communications method is set.
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At the time of purchase, your phone’s default mode of Automatic is set. This allows global
usage and normally will not need to be changed.
Activate Sprint Worldwide Service on Your
Account
Before using your phone in global roaming mode, you must activate Sprint Worldwide service.
To activate Sprint Worldwide service:
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Chat with or email an international support rep by visiting sprint.com/swwsupport .
– or –
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Call Sprint Worldwide Customer support at 1-888-226-7212.
Your Phone’s SIM Card for International GSM
Roaming
Your phone comes with a preinstalled SIM (Subscriber Identity Module) card to support roaming on
compatible GSM networks.
Note: Your SIM card should be preinstalled. If you need to reinstall your SIM card, follow the
instructions in
SIM Card .