This instruction is for Eunhasu upgrade which is not able to upgrade by clicking the upgrade button on the Eunhasu upgrade page.

There are 3 ways to do the upgrade.

First, [[https://en.wikipedia.org/wiki/Samba_(software)|Samba]] : It is for Windows file sharing protocol. To access sMS-200 through SMB, type [[\\eunhasu\mwdata\music|\\eunhasu\mwdata\music]] in windows file explorer. The sMS-200 should be connected in the same network.

Second, USB memory stick : It is internal debug mode. To use this method for the upgrade, several conditions should be matched.

Finally, imageUSB utility : This is external application to write entire image of the latest version to SD card.

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====== By samba share ======

  - Download upgrade-last.tar file from server
      * [[http://sotm-audio.com/eunhasu/upgrade/sotm/armv7l/release/upgrade-last.tar|sMS-200]]
  - Copy upgrade-last.tar to Eunhasu samba directory [[\\eunhasu\mwdata\music|\\eunhasu\mwdata\music]]
  - Eunhasu page will be loaded like  [[http://eunhasu/upgrade.php?upgrade_server=eunhasu/music&force=1|http://eunhasu/upgrade.php?upgrade_server=eunhasu/music&force=1]]
      - //upgrade_server={EUNHASU_IP}/music//  is possible
====== By USB ======

  - Format USB to FAT32
  - Change USB label to SOTMDEBUG and it must be upper case
  - Download upgrade-last.tar file from server
      * [[http://sotm-audio.com/eunhasu/upgrade/sotm/armv7l/release/upgrade-last.tar|sMS-200]]
  - Copy the downloaded upgrade-last.tar to the USB root directory
  - Download [[http://docs.sotm-audio.com/lib/exe/fetch.php?media=en:run_debug.txt.doc|this file]] and rename to run_debug.txt
  - Copy run_debug.txt to the USB root directory
  - run_debug.txt file must contain following strings <code>upgrade force</code>
  - Remove whole inserted USB stick on sMS-200
  - Insert SOTMDEBUG USB to sMS-200
  - On working, blink the left LED
  - After finishing, the left LED off

====== By external utility ======

  * sMS-200 - [[:en:how_to_enable_gigabit_ethernet_in_sms-200#software|Refer Here]]