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PLENUE 2 Mark II Firmware V2.40

2020-02-10 08:39:06



  • The battery must be fully charged before firmware upgrade.
  • Do not reset PLENUE 2 Mark II during firmware upgrade.
  • Backup any important files in PLENUE 2 Mark II to your PC before firmware upgrade.
  • Please use firmware that COWON authorizes only.
  • JetEffect values might be initialized after firmware upgrade. Please record any important values.
New features
  • Improved compatibility with some smartphones when using USB DAC function. *
  • Improved compatibility with some battery chargers.
  • Added optical output ON/ OFF function. (Setting System Optical Output)
  • Improved switching sensitivity of vertical/horizontal screen mode
  • Corrected partial system time setting errors.
  • Improved ALAC decoder.
  • Fixed a problem where a noise occurs when ending some DSD file playback in firmware version 2.30
  • * When connecting PLENUE with your smartphone in USB DAC mode and if you see the message 'High-power USB device connected ', set PLENUE "Setup System USB DAC Power" menu setting to 'Built-in Battery' and connect the USB cable with the PLENUE power ON.
Firmware Download
How to Install Firmware
  • After downloading the firmware file (PLENUE_2_x.xx), unzip it (PLENUE_2_FW, PLENUE_2_FW_key).
  • Turn on PLENUE 2 Mark II and connect it to a PC by a USB cable.
  • Copy and paste the two files (PLENUE_2_FW, PLENUE_2_FW_key) to the root folder of PLENUE 2 Mark II.
  • Right-click on the icon [Safely Remove Hardware] in the tray at the lower right corner of the screen to disconnect the device from the PC.
  • First of all, please make sure PLENUE 2 Mark II is turned off. Then, press a power button of the device. Firmware upgrade process will be shown on the screen followed by PLENUE 2 Mark II's automatic turning off. Please turn on the device again. There would be two times of firmware upgrade.
  • When PLENUE 2 Mark II turns off again after showing a 'Success' message on the screen, turn on the device again.
  • Firmware version is can be checked at settings system information.
Notice PLENUE PLENUE D3 PLENUE D3 Firmware V1.00 2021/03/29
Notice PLENUE PLENUE R2 PLENUE R2 Firmware V1.21 2020/05/27
Notice PLENUE PLENUE J PLENUE J Firmware V1.12 2020/04/20
Notice PLENUE PLENUE 2 PLENUE 2 Firmware V2.40 2020/02/10
Notice PLENUE PLENUE 2 Mark II PLENUE 2 Mark II Firmware V2.40 2020/02/10
Notice PLENUE PLENUE L PLENUE L Firmware V1.40 2020/02/04
Notice PLENUE PLENUE M2 PLENUE M2 Firmware V1.40 2020/01/06
Notice AutoCapsule AQ2 AutoCapsule Smart Manager V2.9.0 2019/11/07
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