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50 2B. Settings
To turn TTY Mode on or off:
1. Press > and tap Settings > Call > TTY mode.
2. Tap TTY Full, TTY HCO, or TTY VCO to turn TTY
mode on.
– or –
Tap
TTY Off to turn TTY mode off.
Security Settings
Protecting Your Device with a Screen Lock
You can increase the security of your device by
creating a screen lock. When enabled, you have to
draw the correct unlock pattern on the screen, enter the
correct PIN, or enter the correct password to unlock the
device’s control keys, buttons, and touchscreen.
To create and enable the screen unlock pattern:
1. Press > and tap Settings > Security >
Set up screen lock.
2. Tap Pattern.
3. Read the information on the screen and tap Next.
4. Study the example pattern on the screen, and then
tap
Next.
5. Draw the screen unlock pattern by connecting at
least four dots in a vertical, horizontal, or diagonal
direction. Lift your finger from the screen when
finished.
Note: When enabled, TTY mode may impair the audio
quality of non-TTY devices connected to the headset
jack.
WARNING: 911 Emergency Calling
Sprint recommends that TTY users make
emergency calls by other means, including
Telecommunications Relay Services (TRS),
analog cellular, and landline communications.
Wireless TTY calls to 911 may be corrupted
when received by public safety answering points
(PSAPs), rendering some communications
unintelligible. The problem encountered appears
related to TTY equipment or software used by
PSAPs. This matter has been brought to the
attention of the FCC, and the wireless industry
and the PSAP community are currently working
to resolve this.