MB STUDIO and MB RECASTER work through the activation provided by the USB key you received after your purchase. Since it is a USB peripheral, problems may occasionally occur such as loss of connection between Windows and the key or between MB STUDIO / MB RECASTER and the key.

"no MARX hardware attached" or "Unknown Error" these are the classic errors that indicate a loss of connection with the USB key. If so, try one, some, or all of these changes:

• Move the key to another USB port
• Plug the key into a USB port built into the motherboard or to a self-powered USB HUB
• In Windows settings disable USB power saving https://myelo.elotouch.com/support/s/article/WINDOWS-10-USB-SELECT-SUSPEND-POWER
• Add the MBStudio or MBRecaster folder to the antivirus exclusion list SETUP: EXCLUDE MB STUDIO FOLDER FROM YOUR ANTIVIRUS
• Unplug any other USB peripherals as your PC's power supply may not have enough power to power them all or there may be a conflict with another peripheral
• Explore the MBStudio or MBRecaster folder and if the mpiwin32.dll file is present delete it (to delete it you need to close MBStudio or MBRecaster)
• Reinstall the driver:

  CRYPTOBOX DRIVER Popular 3.2.5.1209 3.2 MB 16147

  01/02/2022 10:17:00

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 If despite all this the USB key is still not visible in the Windows devices (CBUSB Ver 2.0)

contact support from here: SUPPORT - HOW TO REPORT A PROBLEM

If the key is faulty, it will be replaced free of charge within 2 years of purchase, a cost will be charged after 2 years: https://www.mbradio.it/en/shop/services/license-transfer-new-usb-dongle