Introduction

In corner cases, when the NavVis VLX / MLX device is experiencing operating system failures and cannot boot correctly, it is then required to flash and restore the system to a specific image.

This procedure describes how the system restore can be done with an ISO image from an external disk.

Download the ISO image file

Contact NavVis Support team (support@navvis.com) with your device’s serial number to get the latest ISO image file. Depending on the serial number, there will be a dedicated version of ISO image provided.

The ISO file will be shared via a Onedrive link.

Create a bootable drive using the ISO image

Prerequisites

• Hardware

  • VLX: Device’s own SSD as the bootable drive, a keyboard with USB-A connector

  • MLX: A USB-C dongle that can connect a USB drive and a USB keyboard

• ISO file

• A computer that can create a bootable USB drive

Creating the bootable drive

There are various tools that can create a bootable drive from an ISO image. For example, Ubuntu has its own tool from the native system named “Startup Disk Creator“.

The tool that we recommend is called “balenaEtcher“: https://etcher.balena.io/ . This is a cross-platform tool that can be used on Windows/macOS/Linux.

The bootable drive creation is quite simple; the balenaEtcher tool will guide you through the following steps:

Example of using balenaEtcher on macOS

The following steps show how a bootable drive is created in macOS.

A similar procedure also applies to Windows/Linux.

1. Select Flash from file.

   

2. Select the downloaded VLX/MLX ISO file.
   

3. Select the Target Drive.

   

4. For example, the external drive is the Samsung T5 SSD
   

5. Click Flash.
   

6. A final confirmation on the target drive. Select Yes I’m sure.
   

7. Type in the user password to flash disk.
   

8. Flash Completed
   

Flash the NavVis VLX/MLX

Preparation

Step 1: Power on into BIOS boot menu

• Power on the device.

• Press F10 on the keyboard to enter boot menu.

Step 2: Select the correct bootable USB

The bootable disk displays last, which marks the SSD’s model e.g. “UEFI OS Samsung PSSD T7 xx Boot Drive“

Note: Do not select the “Samsung SSD 250GB“ selection → This is the device’s internal computer disk.

Step 3: Installation

Installation should be fully automatic for the device, displayed in a command line view.

Total process may take around 5min, and the device will automatically restart after the installation.

Note: If the installation process is stuck at the command line view, it could be you are at a “User Input Required“ stage, where you need to type in the serial number of your device e.g. “G10-001“, and press Enter to continue installation.

Step 4: Reboot the device

1. Power off the device by pressing the power button once.

2. Disconnect the USB Keyboard.

3. Format the SSD again into exFAT, and label it as “data“ (case sensitive).

   1. More info can be found here: https://knowledge.navvis.com/docs/formatting-an-ssd-card

4. Insert the SSD (VLX/ USB-C flash Drive (MLX) into the device and power it on.

5. The device will reboot and be ready to scan after the IMU calibration.