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Firmware

Gimbal Firmware

win_icon Vio Firmware Latest Version Oficial

What's new ?

  • Improve follow behavior with window.

Fixbug:

  • Fix cannot control pan angle to 0 in some situations.

Software

⚠️ Important Warning – Software Update Prerequisite

Before trying to update the software to this version, please check the payload software version first

  • If you are currently using Vio versions 1.4 or earlier, please update to version 1.5 first. The v1.5 update package already includes the v2.0.0 branch, allowing you to seamlessly upgrade to Vio Software v2.x after installing v1.5.

  • You can find the software Vio software v1.5

  • This is a critical update. To ensure a successful process, do not power off your device during the update. The update process will take approximately 2-3 minutes to complete.

LogoRelease v2.1.0_build.05262025 · Gremsy/Vio-Software-V2GitHub

What's new ?

First Gremsy Electronic Image Stabiliation (EIS) Release Introduced advanced stabilization processing for 1080p and zoom levels above 30× in Combine Zoom mode.

  • Object tracking up to 240× zoom in Combine mode

  • Advanced stabilization now available for 1080p resolution and zoom levels above 30×

  • New SDK integration for enhanced isotherm processing on G1 models

  • Real-time IR-camera position overlay on EO streams for improved scene context

  • Expanded EO-camera settings including:

    • Sensor gain

    • R/G/B gain

    • CAM_MinShutterEnable

    • CAM_FREEZE

    • CAM_HighSensitivity

  • A redesigned OSD Debug View, now showing gimbal and GPS status

  • Dual input support: simultaneous control signals from onboard computers and autopilots

Improvements include:

  • Refined HFOV calculation based on focal_length

  • Uncompressed 16-bit TIFF IR images preserving full dynamic range

Bug Fixes:

  • SBUS mode switching issues

  • Stream lag during video recording

  • Continuous video request artifacts (green tint)

  • Yaw angle discrepancies in captured imagery

Video Stream App v2.1.1

  • Optimized I-frame size for better bandwidth use

  • IR stream bitrate updated to 4 Mbps

  • Fixed green-artifact issue during continuous video requests

Web Server Settings App v2.1.0

  • Simplified UI with renamed fields for clarity:

    • “Storage” renamed to Media Format

    • “Record Format” renamed to EO Record Encoder

  • Updated IR image type options to JPEG & RAW

  • Streamlined IR Camera/System settings pages

  • Default IR stream bitrate set to 4 Mbps

Gremsy Payload SDK v3.0.0

Updated communication protocols and expanded support for developers:

Camera Definition File v10.0.0

Supporting Tools Updated

  • Payload Assistant App (Android and Desktop) now supports Vio Payload App v2.0.0 and higher

  • GremsyFlashTools updated for full compatibility

Gimbal Firmware Upgrade: v7.8.3 or Higher Required

HOW TO UPGRADE

1. Preparing for Upgrade

Before starting, ensure you have the required tools and software packages.

1.1 VIO Software Upgrade Tool

  • Tool: GremsyFlashTools

  • Version: v1.1.7.5 (Latest)

  • Download:

LogoRelease GremsyFlashTools_v1.1.7.5 · Gremsy/GremsyFlashToolsGitHub

1.2 VIO Gimbal Firmware Upgrade Tool

  • Tool: gTune Desktop

  • Version: v1.4.9.5

  • Download:

LogoRelease gTuneDesktop v1.4.9.5 - Official · Gremsy/gTuneDesktopGitHub

2. Upgrade Instruction

2.1 VIO Software Upgrade

General Connection Setup

  1. Connect a USB-C cable from the bottom of the VIO to your computer.

  2. Change your computer’s IPv4 address for the VIO USB Ethernet interface to: 192.168.55.X (e.g., 192.168.55.110)

  3. Refer to your operating system’s IP configuration guide if needed.

2.1.1 Upgrade via Web App

  1. Open a web browser and go to: http://192.168.55.1:8000/

  2. Navigate to the OTA Update section.

  3. Choose "Manual", then "Browse" to locate the VIO software .zip file. Do not unzip the file.

  4. Click "Update" and wait for the process to complete.

  5. Power cycle the VIO.

  6. Wait for approximately 2 minutes until the purple LED indicates a successful boot.

2.1.2 Upgrade via Gremsy Flash Tool

  1. Launch GremsyFlashTools v1.1.7.5.

  2. Select "VIO" from the device list.

  3. Click "Open File" and select the VIO software .zip file. Do not extract the file.

  4. Click "Check Device" to confirm connectivity.

  5. Click "Flash Payload VIO".

  6. Wait for the process to complete.

  7. Once finished, the system will confirm a successful upgrade.

2.2 VIO Gimbal Firmware Upgrade

  1. Download the latest gimbal firmware file.

  2. Power on the VIO.

  3. Connect the S-Port micro-USB port on the gimbal to your computer.

  4. Launch gTune Desktop and click "Connect".

  5. Go to the "UPGRADE" tab and select "UPGRADE FIRMWARE".

  6. Click "MANUAL UPGRADE".

  7. Click "BROWSE" and select the firmware file.

  8. Disconnect the control cable from the MTX port that is connected to the VIO before upgrading.

  9. Click "Upgrade". The process will take about 2 minutes.

  10. Once the upgrade is complete, click "DONE". The gimbal will restart automatically.

Important Warning – Software Version Compatibility

Before updating to VIO software version 2.x:

  • If your current software version is 1.4 or earlier, you must first update to version 1.5.

  • The v1.5 update contains critical components required for compatibility with version 2.x.

  • Do not power off or disconnect the device during the update.

  • The update process will take approximately 2–3 minutes.

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