Manuals

KOS Recovery | 2nd Gen.

In case your 2nd generation KLANG processor was e.g. switched off during a KOS Update and the internal rescue system cannot solve the issue, follow the steps below.

This is an expert procedure and will have most likely to be performed by your KLANG service partner. This guide is written for DMI-KLANG, but will work on :vokal, :konductor and :kontroller as well.

Step 1 | Formatting the micro SD card

Format MicroSD card with Several Partitions

Mac OS

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  1. Open Disk Utility
  2. First, you must go to View > Show All Devices. Otherwise you will not see the correct partition.

  1. In the left pane under “External” chose the top entry for the microSD card. Right click on it u0026gt; Erase…

  1. Choose Format: “MS-DOS (FAT)” and Scheme: “Master Boot Record” and click “Erase”. If you do not have the Scheme dropdown, go back to step 2 und make sure to chose the top entry in step 3).

Windows

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    1. Open Command Prompt (Windows Key + R > Then type CMD and hit ENTER)
    2. Type: diskpart
    3. Type: list disk
    4. Choose the disk number corresponding to the microSD card and type e.g.: select disk 2
    5. Type: clean (You might need to try this again if it does not work)
    6. Type: create partition primary
    7. Type: format fs=fat32 (This might take a few minutes)
    8. Type: assign

 

Step 2 | Copy Recovery Files

Recovery Files for SD
  1. Download the Recovery Files above.
  2. Unzip and go into subfolder “FACTORY-PROGRAMMING”
  3. Unzip the files for your product, e.g. FACTORY-PROGRAMMING-BOOTLOADER-SDCARD-DMI.zip
  4. Go to the subfolder e.g. FACTORY-PROGRAMMING-BOOTLOADER-SDCARD-DMI
  5. Copy all 11 *.bin files to the root directory of the microSD card.
  6. Unmount/eject SD card.

Step 3 | Program the module

Switch power off!
On :konductor, when looking from behind, the left microSD card (Closer to the WCLK BNCs) is for engine B, the right microSD is for engine A. Jumpers on both modules need to be set.
On DMI-KLANG, Jumper is below Fan, but it can be set with tweezers from the right side below the engraved G­­ without removing the Fan.
  1. Set Jumper LK4 on KLANG module to the programming position so it bridges the two contacts closest to R94
  1. Insert microSD card(s).
  2. Power on device. For DMI-KLANG, insert into any DMI slot and/or Switch power on.
  3. Status LED will turn BLUE:booting immediately and then ORANGE:programming.
    Devices with a display will show process on the display instead.
  4. Wait until LED or display turns GREEN. This may take up to 1-2 minutes.

Step 4 | Revert jumper setting

  1. Switch power off. For DMI-KLANG, remove from slot.
  2. Change Jumper(s) LK4 back to its FINAL POSITION as follows:

  1. Remove microSD card(s) and delete all files from it or format the entire card (See above for details).
  2. Insert microSD card(s) again.
  3. Copy the latest KOS Update Files to an empty USB stick. Download KOS Update files here.
  4. Press and hold the Reset/Update Button while powering on the device.
  5. The LED switches to BLUE (booting), then goes through different stages of blinking white and later it turns to PURPLE when ready. May take up to 15 minutes.

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