V-STUDIO 20: VS-20 Editor reports "Unable to read/write data"

Tags: effects,software,write,data,to,editor,unable,read,read/write,unable to read/write data

When the VS-20 hardware is connected to a different USB port on your PC, the VS-20 Editor software may prompt an "Unable to read/write data" message. The following procedure will restore communication between the VS-20 hardware and the VS-20 Editor software.

NOTE: Additional troubleshooting information can be found at the bottom of this article under "ADDITIONAL CONSIDERATIONS".

  1. Close down any DAW audio software.
  2. Be sure that you have completely connected the USB cable to both the VS-20 hardware and a USB port on your PC. If the cable was not completely connected, close and then reopen the VS-20 Editor software. If the message continues to appear, it is possible that the VS-20 Effect Control port has been lost.

  3. In the VS-20 Editor software, click on SETUP and then select “Set Up MIDI Devices…”

  4. The following dialogue will appear. Note that the currently selected “ports” are labeled “(Unconnected)”.

  5. Select the “VS-20 Effect Control” that is not labeled “(Unconnected)” for both the "Input" and "Output" drop down menus.
    Note: Do not select “VS-20 DAW Control” for either "Input" or "Output".

  6. Click “OK” to close the dialogue box.

  7. Press any button on the VS-20 Hardware to re-establish connection between the VS-20 Hardware and the VS-20 Editor software. When connection is restored, "MIDI reconnected" will appear.
  8. You may now open any DAW audio software and setup the V-STUDIO 20 in the software.


  1. This can happen if a device (i.e. V-STUDIO 20) was disconnected/reconnected. If the V-STUDIO 20 is being disconnected when closing down Guitar Tracks 4 software (even when the computer has been turned off), this may be the cause of the issue.

  2. Another cause could be if you are letting your computer hibernate or go to sleep. When the device is "waking up", Windows might be renaming it causing the Effects Editor to lose it's settings.

  3. Check the Power Management settings for the Root Hubs (Windows):
      a. Click on the Windows icon (or the Start icon) on the bottom left of the screen.
      b. Select Control Panel. The Control Panel window will appear.
      c. On the top-right of the Control Panel window, set the “View by:” to “Small Icons”.
      d. Click on the “System” icon. The System window appears.
      e. In the left panel of the System window, click on “Device Manager”. The Device Manager window appears.
      f. Under "Universal Serial Bus controllers" there are probably several listings for "USB Root Hub".
      g. Right-click on each of these and go into the Properties.
      h. Click on the Power Management tab and then be sure that “Allow the computer to turn off this device to save power" is not enable (no check mark).

  4. Check the Power Management settings in the Device Manager (Windows):
      a. Click on the Windows (or Start) icon on the bottom left of your screen.
      b. Select Control Panel. The Control Panel window will appear.
      c. On the top-right of the Control Panel window, set the “View by:” to “Small Icons”.
      d. Click on "Power Options."
      e. Click on "Create a power plan," select "High performance," click on Next and then Create.
      f. In the newly created High performance plan area, click "Change plan settings."
      g. Click "Change advanced power settings."
      h. In the Advanced Settings, click the “+” symbol for "Hard Disk," and click the “+”symbol for "Turn off hard disk after" to open it.
      i. Click "Setting (Minutes)," and click the down arrow to change the setting to "Never."
      j. Click [OK] to close the Power Options window.
      k. Close the "Edit Plan Settings" screen.

  5. Check the Performance Options settings (Windows):
      a. Open the "Control Panel," click "System and Security " or "System and Maintenance," and then click "System." If the Control Panel is in the icon view or Classic View, then double-click the "System" icon
      b. At the left, click "Advanced system settings."
      c. If a dialog box regarding User Account Control appears, click [Yes] or [Continue]. If you are asked to enter the password of an Administrator account, log on to Windows as a user whose Account Type is Administrator, then perform the settings again.
      d. Click [Settings] of the Performance section, and then click the [Advanced] tab.
      e. Select "Background services," and click [OK].
      f. Click [OK] to close "System Properties."