Pioneer DEH-S31BT Use and care manual

System Firmware Update Instructions for Pioneer Audio Receivers
(DEH-S31BT, DEH-S4100BT, DEH-S4120BT, DEH-S5100BT, DEH-120BT, DEH-S6100BS,
DEH-S6120BS, MVH-S310BT, MVH-S312BT, and MVH-S512BS)
This firmware update (version 08.27, 18.03, or 28.03) applies only to the following models of Pioneer
products sold in the United States and Canada.Installation on any other product could cause
irreversible damage.
DEH-S31BT
DEH-S4100BT
DEH-S4120BT
DEH-S5100BT
DEH-S5120BT
DEH-S6100BS
DEH-S6120BS
MVH-S310BT
MVH-S312BT
MVH-S512BS
IMPORTANT
Please download and print these firmware update instructions before downloading and installing the
firmware update. It is important that you complete all steps correctly and, in the order, described below.
Note: If you have any questions, please contact Pioneer Customer Service toll free at 1-800-421-1404,
Monday through Friday, 7:30 AM - 11:30 AM and 12:30 PM - 4:00 PM (Pacific Time), excluding holidays, or
by email through parts.pioneerelectronics.com/contact.
In order to perform this update, the following items are needed:
• Pioneer CD receiver listed above.
• A USB storage device meeting the following requirements.
-2 GB or larger in capacity, formatted to FAT32
-Blank (should not contain any files)
CAUTION: DO NOT turn your unit off or eject the USB storage device while the firmware is being
updated. Any interruption to the firmware update process could cause irreversible damage to the
unit.
WARNING:Install this update only when the vehicle is safely parked in an open, well-ventilated area,
such as an outdoor parking lot, where you can safely keep the engine running to maintain power to the
battery. NEVER RUN YOUR VEHICLE’S ENGINE IN AN ENCLOSED SPACE, WHICH CAN QUICKLY
FILL UP WITH TOXIC CARBON MONOXIDE GAS, LEADING TO SERIOUS INJURY OR DEATH.
Checking the firmware version
Check whether the firmware of your unit needs to be updated by checking the version number of the
firmware. The update version to download and install will depend on the existing firmware version on your
unit.
Your unit's current firmware version Update version
08.XX 08.27
18.XX 18.03
28.XX 28.03

Procedure:
1. Start the vehicle engine (in an open, well-ventilated area).
2. If AV Source is On, Press and hold SRC/OFF to set the unit Source OFF.
3. Press M.C. (multi-control) dial to display the “Initial” menu, then press to confirm.
4. Turn M.C. dial to select “SYSTEM UPDATE”, then press to confirm.
5. Select “SYSTEM INFO,” then press to confirm.
6. After the “SYSTEM INFO” screen appears, check the firmware version.
7. Verify that the firmware on your unit is not already firmware version 08.27, 18.03, or 28.03.
08.11

Downloading the firmware update files from Pioneer's website
1. Download the firmware update files by clicking on the following link and finding your product:
pioneerelectronics.com/firmware
2. Locate the downloaded .zip file, extract the ***.scd file and copy it onto the USB device.
The Downloaded ZIP file will produce the following file when decompressed: (See the table below)
Model Name Update necessary if: File name Update Version
DEH-XXXX
Current version is 08.20 or lower
19DEH_A0827.scd 08.27
Current version is 18.00~18.01 or lower 19DEH_A1803.scd 18.03
Current version is 28.00~28.01 or lower
19DEH_A2803.scd 28.03
MVH-XXXX
Current version is 08.20 or lower 19DEH_A0827.scd 08.27
Current version is 18.00~18.01 or lower
19DEH_A1803.scd 18.03
Current version is 28.00~28.01 or lower 19DEH_A2803.scd 28.03
IMPORTANT
There may be more than one firmware update listed for your product. Please check your current firmware
version and copy to your USB storage device only the update file that corresponds to your receiver's
current firmware, as listed in the table above.
Updating the firmware on your Unit
IMPORTANT
• DO NOT perform this firmware update if the model number of your Pioneer product is anything other
than one of the above models.
• Ensure that the update file is located within the root (top) folder of your USB storage device. There
should be no other files within the USB storage device.
• While your unit is being updated, DO NOT turn off the system’s power and DO NOT touch the unit’s
touchscreen as this may result in severe damage to your unit.
• DO NOT remove the USB storage device during the firmware update process.
• Performing the firmware update will restore all settings to their default values.
• Disconnect any external mobile devices connected to your unit before starting the update process.

Procedure:
1. Connect a blank (formatted) USB storage device to your computer, then locate and copy the correct
update “xxx.scd” file onto the USB storage device.
2. Start the vehicle engine (in an open, well-ventilated area).
3. Connect the USB storage device to the USB input on your unit.
4. If AV Source is On, Press and hold SRC/OFF to set the unit Source OFF.
5. Press the M.C. (multi-control) to display the Initial menu.
6. Turn M.C. dial to select “SYSTEM UPDATE“, then press to confirm.
7. Select the “S/W UPDATE” and press to confirm.
8. The “CHECK FILE” screen appears.
-> If it shows “ERROR” or “FILE ERR->CHK USB” on the display, try the following:
Confirm that the software is correct, then restart the update process or change to a new USB storage
device.
“ERR->RETRY” Do not turn off the power! The unit will retry the firmware update automatically.

9. After starting, there will be a progress bar while updating.
-> If it shows “ERROR” on the display, try the following:
“ERR->RETRY” Disconnect, then reconnect the USB storage device and press the M.C. dial to retry the
update.
10. Wait until the update is complete, which will take about 5 minutes.
-> You will see the following screen if the update has completed successfully.
11. The product will reboot after the update is finished. Do not touch anything even when the screen is
blacked out. After it has finished rebooting, the screen will return to the menu screen.
12. The firmware update is now complete. Your Pioneer Audio Receiver is now ready for use.
Verify that the firmware has been updated
Perform the same procedure for “Displaying the firmware version” to check that the firmware has been
updated.
Procedure:
1. Start the vehicle engine (in an open, well-ventilated area).
2. If AV Source is on, press and hold SRC/OFF.
3. Press M.C. (multi-control) dial to display the “Initial” menu. then press to confirm.

4. Turn the M.C. dial to select “SYSTEM UPDATE”, then press to confirm.
5. Select the “SYSTEM INFO,” then press to confirm.
6. After the “SYSTEM INFO” screen appears, check the firmware version.
7. Verify that the firmware on your unit is 08.27, 18.03, or 28.03, as applicable.
Contact Information
If you have any questions, please contact Pioneer Customer Service toll free at 1-800-421-1404, Monday
through Friday, 7:30 AM - 11:30 AM and 12:30 PM - 4:00 PM (Pacific Time), excluding holidays,
or online through https//parts.pioneerelectronics.com/contact.
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