Browse the FAQs below to find quick answers to your questions and if you don’t find the answer, please tell us.
What does Non-incendive: Class 1 Division 2, Grade A-D, T4 mean?
1. Zone 2 (or Div 2) is a place in which an explosive atmosphere is not likely to occur in normal operation but, if it does occur, will persist for a short period only (< 10hours/year).
2. T4 references the maximum temperature the phone will reach. This phone is rated T4 meaning the phone temperature will not exceed 135° C.
3. Group A-D refers to hazardous gas types.
4. TAMB refers to the upper and lower ambient temperatures the phone is approved for use in and remain non-incendive rated. For the S48c, that range is -25°C to +55°C
What is the IP and MIL SPEC rating for the Cat S48c?
IP stands for “”Ingress Protection. The Cat S48c is rated as IP68. The “”6″” in this rating refers to the dust rating. This phone is rated as “”Dust Tight”” meaning complete protection against dust intrusion as long as all port covers are properly closed.
The 8 in the rating refers to the phone’s ability to be submerged in water. The Cat S48c can be submerged in up to 4 feet of water for 35 minutes as long as all port covers are properly closed.
The MIL-SPEC rating for the Cat S48c is MIL SPEC 810G making the Cat S48c drop proof to 6′ , dust proof (when all port covers are properly closed), and vibration proof (Category 4 – Truck/Trailer – Secured Cargo ).
Does this phone work with Sprint Direct Connect Plus™?
Sprints’s Direct Connect Plus is an optional service from Sprint that allows real-time push-to-talk communication with members of a team or business.
The S48c supports Sprints Direct Connect Plus service. For more information, visit:
What is the hazardous area classification for the Cat S48c?
Non-Incendive: Class 1 Division 2, Grade A-D, T4
(do not charge or connect or remove anything to the phone while in a hazardous areas)
Where can I buy a Sprint Cat S48c?
The Cat S48c can be purchased through your local Sprint store or from www.sprint.com/CatS48c.
How do I use the device in camera/video mode when underwater?
The S48c comes with the ability to be used underwater to take photographs or record video. Be careful to not go deeper than 3 meters or for longer than 1 hour.
1. You can enable Underwater mode at any time by ‘triple pressing’ the power key or from tapping the underwater camera icon from within the camera mode menu.
2. The Underwater mode disables the touch screen and the recent android key.
3. Use the Volume up button to take a picture or start / stop a video.
4. Tap the Volume down button to switch between photo and video.
5. Hold the Volume down button to switch between the front and back camera.
6. Return to regular camera mode by tapping the Android back key.
7. Exit the camera and disable underwater mode by pressing the Android home key.
8. Turn off your display and exit the underwater camera by pressing the side power key.
How do I resolve when Poor Sound Quality is experienced?
There are a number of contributing factors which can affect the audio performance of your device:
1. The most common cause of poor sound quality is water in the microphone or speaker. If the handset has been subject to immersion in water then the microphone and speaker may need to dry out to resume normal functionality.
2. You, or the other person you are speaking with, may be in an area of poor signal. Try moving to a different area.
3. You may have dirt / debris covering the microphone or speaker. If so, clean your device.
What should I do when experiencing reception / signal issues?
Poor quality of calls:
1. Please check if the volume of the device is adjusted to an acceptable comfortable level.
2. When the device is used in areas with poor signal, e.g. near high buildings or in basements, the call quality may be adversely affected.
3. When this device is used in a high call intensity period, like rush hour, call failure / poor call quality may be caused by network congestion.
If you are in an area of poor reception/signal, you may experience shorter standby time than usual. This is because your device is regularly searching for a better signal and therefore consuming battery.
What do I need to do if “Enter PUK code” is displayed?
1. Following three consecutive failures to input the correct SIM card PIN code, the PIN code will be blocked and the request for the PUK code will be displayed.
2. Before attempting to input the PUK code ensure that you have the correct code provided by Network provider.
3. After ten unsuccessful attempts to input the PUK code, the SIM card will be permanently disabled.
4. Once the SIM card is permanently disabled you will need to contact relevant body to purchase a New SIM card.
What do I do if “Emergency Call only” is displayed on your Home screen?
1. This will be displayed if there are issues with the SIM card or problem with your cellular account.
2. Additionally if you are in an area not covered by your Network Provider.
What should I do if the device displays message “No Service”?
1. This may be displayed if you are in an area that is not covered by your Network provider, or if you are in an area of poor reception for example an enclosed area.
2. No service will be displayed on your screen until the situation is resolved by relocating to an area of service.
3. If this problem persists when in a known good service location, contact your Network provider to ensure there are no restrictions on service or your SIM services.
What does the Message “Insert SIM card” indicate?
This message may appear if your device does not recognize the SIM card.
1. Make sure that you have correctly inserted the SIM card.
2. Clean the metal side of the SIM card with a dry cloth.
3. If the SIM card still not being recognized, please contact your Network provider to ensure the SIM card has been enabled or to check if they have any further instructions.
How is Caller ID enabled/disabled on this device?
1. Launch the Phone app.
2. Tap the menu icon in the top right (three vertical dots).
3. Tap “”Settings””.
4. Tap “”Called ID & Spam””.
5. Enable / disable the Caller ID & Spam option.
6. With the Caller ID option enabled you now have an option below to filter suspected spam calls, enable / disable this by tapping the toggle switch.
How can I back up data to an external storage device?
To transfer files from your phone to PC / Mac:
1. Connect your Cat S48c to your PC / Mac via USB cable.
2. On the Cat S48c notification tray, tap the “”Use USB to”” notification and select “”Transfer files””.
3. The Cat S48c will now be visible on the PC / Mac.
4. Open the Cat S48c via the PC / Mac to explore files.
5. Copy over anything to the PC / Mac that you wish to back-up.
Note: Alternatively, backup to a MicroSD™ card by inserting one into the Cat S48c. Copy files to it using your chosen file explorer app.
How do I Clear the cache and browser History?
1. Launch the Chrome app.
2. Tap the menu icon in the top right (three vertical dots).
3. Tap “”Settings””.
4. Tap “”Privacy””.
5. Scroll down and tap “”Clear browsing data””.
6. Select the time range you wish to clear.
7. Select what data (Browsing history, Cookies and site data, and Cached images and files) you wish to clear.
8. Under “”Advanced”” you have further options to clear saved passwords, form data, and more.
9. Tap “”Clear data””.
How can I transfer data to another device via Bluetooth (for example an image)?
1. Locate the file that you wish to share on your device.
2. If you only want to send one item, for example a photograph, tap on it and then tap the share icon.
3. Select the Bluetooth sharing option.
4. Choose which Bluetooth enabled device to send the file to.
5. Accept the incoming file on the target device.
How do I turn On/Off predictive text?
1. Go to Settings menu, then select “”System””
2. Scroll down and select “Language & Input”, then “”Virtual keyboard””
3. Tap “Gboard”, then “”Text correction””.
4. Scroll down to “”Correction”” and select the level of correction that you require.
How do I customize the Notifications, sound and vibration for incoming messages?
1. Launch the Messaging app
2. Within the app bring up the Settings menu
3. Scroll down to “Notifications” section
4. Select the “Sound” menu to select the desired sound.
5. Next to “Vibrate” tick to enable/disable vibration for incoming messages.
How do I know there is a device update available, how do I check I have the latest SW?
NOTE: When a new Firmware/Software is available, notifications are sent out to all Cat S48c devices.
On the home screen an Icon will show in the notification panel. When the icon appears you can drag down the notification panel and select.
To manually update:
1. Go to settings menu.
2. Scroll to the bottom of this screen, and select “System”
3. Select the “System update” option
4. Select the “Check for update” option and follow the prompts.
The device should be fully charged prior to updating the system.
What is the gold (Programmable) button for and how do I use this?
This button allows you to open specific Apps on either short or long press of the Programmable button
1. Go to the Settings menu, scroll down to “Programmable Key” and toggle the option on.
2. This will open three options for the device: PTT, Short press and Long press (if you are using a service such as Sprint Direct Connect Plus, select the “PTT” option).
3. Tap on Short or Long press. This will open a screen where you have a number of applications that you can select from, for example; the open the Camera answer or to answer or hangup the phone.
Note: Only one option can be used at a time.
How do I resolve when Poor Sound Quality is experienced following immersion in water?
1. If the handset has been subject to immersion in water then the microphone and speaker will need to dry out for them to resume to normal functionality.
2. Place the device in an area where the microphone and speaker can dry out.
How do I insert my SIM card / and SD Card?
Installing a Nano SIM card:
1. Place your device on a flat surface with the display facing upwards and open the SIM protective cover.
2. Use your fingertip to pull out the SIM tray.
3. Put the Nano SIM card in the SIM tray as indicated on the tray guide with gold pins facing upwards.
4. Insert the SIM tray back into the SIM card slot and ensure the SIM protective cover is completely closed.
Installing a microSD™ memory card:
1. Place your device on a flat surface with the display facing upwards and open the SD protective cover.
2. Insert a microSD™ card into the memory card slot with gold pins facing upwards (the white device ID label preinstalled in this space remains. Place the microSD™ card on top of the white label.)
3. Push the memory card until you hear a locking sound.
• To remove the microSD card, open the SD protective cover, press against the edge of the memory card and remove it.
• Do not force the microSD card as this could damage the memory card or slot.
• The maximum capacity microSD card supported is a 128GB SDXC card
How do I perform a reset, when my screen is blank?
1. To reset the device, keep the power button pressed for about 12 seconds / until vibration is felt.
2. Device will now power on, perform and charge as expected.
3. If this does not work then there is a reset switch located behind the SIM / SD door. Use a paperclip to press this for 5 seconds / until vibration is felt.
How do I improve battery life?
• Applications (such as Skype™) that frequently utilize VOIP (Voice over IP) and other data via Wi-Fi or 3G/4G can significantly reduce battery life. Disable any such applications when maximum battery life is desired.
• Set the display sleep to a start after 15 seconds of inactivity. To change the display timeout settings: from the home screen tap > Settings > Display >Advanced > Sleep > select a shorter delay time.
• Reduce the intensity of the display. To change the display’s brightness, Settings > Display > Brightness level > drag the control bar to the left for a dimmer display or right for a brighter display.
• Disable Wi-Fi when not using it. To disable Wi-Fi: Settings > Network and Internet > tap the on/off button so it is no longer green.
• Make sure your phone has the latest software updates. To check for the latest updates: Settings > System > System update > Check for update.
• Stop any unnecessary programs you installed from running in the background by: Settings > Apps and notifications > See all apps > select and disable any apps that you do not need.
Note! Only stop applications that you have installed. Stopping other pre-installed applications may result in poor phone performance or errors.
How do I find my IMEI Number?
1. This can be found on the outside of the box that you received your phone in and makes up part of the Approval’s label.
2. If the box is not available, type into the device via the keyboard*#06# a pop up box will show the device IMEI.
3. Select Settings and then About phone and then Status, you will now have the option to select IMEI information.
What do the different colours of the LED indicate?
Flashing Red – Low Battery warning less than 15% Battery level.
Solid Red – Battery level is below 15% and currently being charged.
Solid Orange – Battery level is between 15% and 90% and currently being charged.
Solid Green – Battery level is above 90% and currently being charged.
Flashing Blue – Indicates a notification has been received (Message unread, missed call, email etc).
^WARNING: Do not charge, connect, use the USB/audio jack port or open ports, or remove anything from the device in the hazardous areas.
*We cannot guarantee that all gloves will work with this feature.
***Contingent on network availability.