Instruction Manual
System Firmware Update Instructions
for 2019 Pioneer CD Receivers
REMARKS:
✓ If you have any difficulty carrying out these instructions, please contact Pioneer
Customer Support. Once upgraded to this version, it is not possible to downgrade to a
lower version.
✓ Please download and print these instructions before downloading and installing the
firmware update. It is important that you complete all steps correctly and in the order
described below.
✓ This update applies only to the following models and which are sold in Europe:
DEH-S510BT
MVH-S510BT
DEH-S410BT
MVH-S410BT
DEH-S41BT
MVH-S41BT
DEH-S310BT
MVH-S310BT
A. Check the current firmware version of the unit
PROCEDURE:
1. Start the vehicle engine.
2. If AV Source is On, Press and hold the [SRC/OFF] button to switch off the source.
3. Press and hold SRC/OFF to display the Initial menu. Next press the Multi Control to confirm.
4. Rotate the Multi Control to select “SYSTEM UPDATE”, then press to confirm.
5. Select the “SYSTEM INFO” to confirm the system info.
6. After the “SYSTEM INFO” screen appears, check the firmware version.
If the version number is 8.27 or higher, it is not necessary to update the firmware. If the version
number is lower than 8.27, it is necessary to update the firmware. Please continue to Step B.