<note important>Check serial number whether this instruction is needed or not.</note>

====== Hardware ======

===== Disassemble the front case =====

Unscrew the 4 Torx screws as shown. {{  :en:how_to_enable_gigabit_ethernet_in_sms-200_hw1.png  }}

===== Disassemble the LED board =====

Unscrew the black screw and separate the LED board from the front case. {{  :en:how_to_enable_gigabit_ethernet_in_sms-200_hw2.png  }}

===== Disassemble the rear case =====

Unscrew the 4 Torx screws as shown. {{  :en:how_to_enable_gigabit_ethernet_in_sms-200_hw3.png  }}

===== Remove 'C670' Chip Capacitor =====

Pull out the rear case very carefully to disassemble the main board from the body case. Remove 'C670' with a soldering iron. If necessary, the power board can be disassembled. {{  :en:how_to_enable_gigabit_ethernet_in_sms-200_hw4.jpg  }}

===== Assemble sMS-200 cases =====

Repeat to assemble sMS-200 cases in the reverse order.

====== Software ======

To change the micro SD card image, please refer to [[en:eunhasu:burn_sdcard_image|'burn sdcard image']] page.

===== Windows =====
==== Preparation ====

  - Download the new micro SD card image in the link below. Please be noted the image file is quite big (7.4GB BIN file) [[https://drive.google.com/open?id=0B-WWiikMNlOIYlh3RER5bGJNRlk|20170112-RC6_V0.3.0.bin]]
  - Download the [[http://www.osforensics.com/downloads/imageusb.zip|imageUSB]] utility and unzip.
  - Take out the micro SD card from the rear case of sMS-200 and insert to the USB port by using the micro SD card reader.

==== Run imageUSB ====

Run imageUSB. The connected USB device will be shown up. If the connected USB device is not shown, click 'Refresh Drives'. {{  :en:how_to_enable_gigabit_ethernet_in_sms-200_sw1.png  }}

==== Select an USB device ====

Select an USB device to write the new image file. {{  :en:how_to_enable_gigabit_ethernet_in_sms-200_sw2.png  }}

==== Select the new image file ====

Click 'Browse' button and select the downloaded image file. {{  :en:how_to_enable_gigabit_ethernet_in_sms-200_sw3.png  }}

==== Write the new image ====

Click 'Write' button to write the new image file to the micro SD card. {{  :en:how_to_enable_gigabit_ethernet_in_sms-200_sw4.png  }}

==== Finish ====

  - Insert the micro SD card to the rear panel of sMS-200 again.
  - Power on sMS-200, and apply the latest software upgrade in Eunhasu animated GUI settings.

===== macOS =====


==== Preparation ====

  - Download the new micro SD card image in the link below. Please be noted the image file is quite big (7.4GB img file) [[https://drive.google.com/open?id=0B-WWiikMNlOIekhEVkhzX1lCMm8|20170112-RC6_V0.3.0.dd.img]]
  - Download dd-utility from [[https://www.thefanclub.co.za/how-to/dd-utility-write-and-backup-operating-system-img-files-memory-card-mac-os-x#downloads|here]] or [[https://github.com/thefanclub/dd-utility/tree/master/DMG|github]]. And install it.
  - Eject the micro SD card from the rear case of sMS-200 and insert to PC USB port by using the micro SD card reader.


==== Start Restore====
Click 'Restore' and select downloaded .img file.
{{ :en:screenshot_2017-01-12_3.50.56.png |}}

Select SD card.
{{ :en:screenshot_2017-01-12_3.51.48.png |}}

And start.
{{ :en:screenshot_2017-01-12_3.52.02.png |}}

You can see progress.
{{ :en:screenshot_2017-01-12_10.48.10.png |}}

After done, insert the SD card to sMS-200 rear.

You can also use command-line by terminal instead of dd utility. Refer to [[https://www.cyberciti.biz/faq/how-to-create-disk-image-on-mac-os-x-with-dd-command/|here]].