HTC RHOD400 Manuel D’Utilisation

4.

Press the 

Power

 button to turn the device on.

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Your device will turn on, search for Sprint service, and then enter standby mode.

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If your device is not yet activated, see “Activating Your Device” on page 3 for more information.

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By default, your device is set to Global mode. If there is no SIM card on your device, your device will 
display a message to inform you that it will switch to CDMA mode.

Entering GSM Mode

By default, your device operates in Global mode. With a SIM card installed, Global mode allows your device 
to seamlessly switch from a CDMA network to a GSM network when you are traveling in another country and 
there is no CDMA service available in your location.

If necessary, you can also manually change the network mode setting of your device to GSM-only mode.

1.

Slide to the Settings tab, and then tap 

 tab.

2.

From the 

 list, select 

.

3.

Tap 

.

Making and Answering Calls in GSM Mode

When traveling on international GSM networks while in GSM mode, you can place and answer calls the 
same as in CDMA mode. See “Using Phone Features” on page 63. Certain features and services are not 
available in all countries.

Visit 

 for more information on services that are available while roaming.

Calling Emergency Numbers in GSM Mode

When traveling on international GSM networks while in GSM mode, you can place calls to emergency 
services (even if your account is restricted or Call Barring is active.)

1.

Press the 

Talk

 key to open the Phone screen.

2.

Tap    

.

Your device’s battery should have enough charge to turn on, find a signal, set up your voicemail, and make a call. 
You should fully charge your battery as soon as possible. See “Charging the Battery” on page 13 for details.