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  COWON  iAUDIO Expert  
02-08-2010 18:37:04  
  COWON S9 Firmware V2.53

COWON S9 Firmware V2.53

If you purchased COWON S9 after March 2010, install firmware version X.52 or higher only.
Downgrading firmware to lower than X.52 may cause damage to your COWON S9.
Please make sure the battery is charged enough for upgrade.
Please do not press the reset button the device while it is upgrading.
Please back up your data.
Please make sure you are disconnecting device with "safely remove hardware" for safely disconnect
your device and PC.
Please download firmware only on our website
COWON Media Center- JetAudio can easily convert or rip your files to compatible files.
Improved overall speed of UI.
Fixed the playback error of some MP3 and OGG files.
Fixed the error that some images are not displayed correctly.
Fixed the error of gapless playback in mono audio files.
Fixed the error that sound was muted when flash contents were played repetitively.
Fixed the error of subtitles of some video files.
Fixed the error that clock was stopped in certain circumstance in Main Manu 3.

Please read notes before install the firmware.
1. Unzip the latest firmware provided by COWON.COM and save it in any folder. 2. Please connect the COWON S9 to the USB port on the back of your computer by USB cable when you
are upgrading firmware. 3. The battery must be charged enough or full
After unzip the firmware file, select all files in the firmware folder and right click to copy.
Connect COWON S9 to a PC via USB cable. When connection is made, paste the firmware files to the root folder of the device.
Click “safely remove hardware” icon in the tray at the lower right corner of your computer screen to disconnect the device from the PC.
Make sure the COWON S9 is turned off and then turn on the device. COWON S9 will automatically start firmware upgrade. COWON S9 will restart after finishing upgrade.
You will be able to check version of firmware on settings > system > information.

notice COWON S9   COWON S9 UCI Developer's Guide V3 COWON 19/05/09
notice iAUDIO 7   iAUDIO 7 firmware V1.18 COWON 29/05/09
notice COWON UM1   COWON UM1 Utilities COWON 12/10/09
notice COWON O2PMP   COWON O2PMP Firmware V1.43 COWON 06/01/10
notice COWON D2+   COWON D2+ Firmware V2.13 COWON 26/01/10
notice COWON S9   COWON S9 Firmware V2.53 COWON 02/08/10
notice COWON D3   COWON D3 Firmware Vx.55 (upgradable from x.53 ver... COWON 06/09/11
notice COWON J3   COWON J3 Firmware V2.29 COWON 03/04/12
notice COWON C2   COWON C2 Firmware V1.17 COWON 17/04/12
notice jetAudio   JetAudio COWON 08/05/12
notice COWON V5   COWON V5 Firmware V1.23 COWON 11/09/12
notice iAUDIO E2   iAUDIO E2 Firmware V1.13 COWON 11/12/12
notice AC1/AD1   Auto Capsule AC1/AD1 Firmware V1.3.4 / PC Player ... COWON 14/02/13
notice COWON X7   COWON X7 Firmware V2.13 COWON 11/04/13
notice AE1   Auto Capsule AE1 PC Manager V1.2.1 COWON 18/10/13
notice AF2   Auto Capsule AF2 PC Manager V1.0.4 COWON 20/05/14
notice AF2   Auto Capsule AF2 Firmware V2.575 and ISP V3.5 COWON 20/05/14
notice AW1   Auto Capsule AW1-AW2 PC Manager V1.2.9 COWON 21/07/14
notice AW1   Auto Capsule AW1 Firmware V3.0.0 COWON 21/07/14
notice AW2   Auto Capsule AW2 Firmware V1.8.0 COWON 21/07/14
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