Pioneer DEH-S4120BT Receiver Firmware 08.27

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:

- 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.
- Start the vehicle engine (in an open, well-ventilated area).
- Connect the USB storage device to the USB input on your unit.
- If AV Source is On, Press and hold SRC/OFF to set the unit Source OFF.
- Press the M.C. (multi-control) to display the Initial menu.
- Turn M.C. dial to select “SYSTEM UPDATE“, then press to confirm.
- Select the “S/W UPDATE” and press to confirm.
- 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.
- 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.
- Wait until the update is complete, which will take about 5 minutes.
- 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.
- The firmware update is now complete. Your Pioneer Audio Receiver is now ready for use.

About A/V Receivers Firmware:

Each Audio-Video Receiver (A/V Receiver) is powered by a firmware version that enables all of its features and allows users to make the most of the device. Updating the firmware can bring various changes that should boost performance, such as improved compatibility with different multimedia file formats.

In order to do so, usually, you must transfer the firmware onto an empty USB storage device, connect the flash drive to the A/V Receiver, and initiate the upgrade process from the device's setup menu.

However, this task must be carefully performed in a steady power environment, by someone who has completely read and understood all the installation steps or by a power user (recommended) – an update failure can cause your receiver's software to encounter serious malfunctions.

Therefore, if you think that this release can improve your audio-video receiver in any way, get the desired version through the available download button and apply the new firmware; if not, check with our website as often as possible so that you don't miss the update that might improve your device.