0. The SYNC package does not include charger, do I need to add one?

The SYNC battery uses Gremsy charger, you maybe need to add one if you have not had one. 

For your reference: the Gremsy charger was added in standard Gremsy series H package. In case, you are using smart battery version, you should add one Gremsy charger to use for SYNC battery.

0. What's included in the package of SYNC?

The SYNC package includes: 

  • 1x SYNC Controller
  • 1x SYNC Handle
  • 2x Monitor Mounting
  • 2x Connecting SYNC
  • 1x SYNC Receiver
  • 1x Micro USB Cable
  • 1x SBUS Cable 
  • 1x SYNC battery
  • 1x SYNC power supply cable
  • 1x SYNC input power supply cable
  • 1x SYNC Jumper
  • 1x SYNC 5-pin cable
  • 1x Allen key 2.5mm
  • 4x M3x25 Screw
  • 2x 1/4 20mm Screw

0. What gimbals work with SYNC?

SYNC works with Series T (T1, T3) and Series H (H3, H7, H16) model.


0. How to assemble the SYNC?

Step 1: Rotate the monitor supports 90 degrees clockwise. After that, slide them to the center position of the top handle bar

Step 2: Attach the SYNC Controller to the handle by using hexagon screws M3x35mm and battery clamp. Adjust the SYNC Controller so that it is parallel

with the side handle bar. After that, using the allen key M3 to tighten the screws.

Step 3: Attach the Li-ion Battery to the clamp

Step 4: Plug the Power Supply Cable into the Battery Output Connector. After that, plug the 4-pins connector into the Power Input Port

Step 5 (optional): Mounting the Wireless Video Link on the monitor support by using

hexagon screw ¼-20

Step 6 (optional): Mounting the Monitor on the monitor support by using hexagon

screw ¼-20

Step 7 (optional): Plug the power supply cable for Wireless Video Link and Monitor (if needed). Connecting the HDMI cable and other accessories (if needed)

*Note: For more details, please read the Quick Start Guide for SYNC - Rev 1.0

0. How to connect the receiver to gimbal?

Step 1: Plug the SBUS cable into the SBUS Port on the SYNC Receiver

Step 2: Plug the other SBUS connector into the SBUS Port on the gimbal

*Note: For more details, please read the Quick Start Guide for SYNC - Rev 1.0

0. How to configure the gimbal to work with the SYNC?

Step 1: Turn on the gimbal (Please see details in the Gremsy Gimbal User’s Manual)

Step 2: Connect the gimbal to your computer via Mini-USB cable

Step 3: Launch the gTune 1.0.0. Select the COMx -> Click on Connect Button.

Step 4: Select Control Tab -> Click on SYNC -> Click on Write Params Button.

*Note: For more details, please read the Quick Start Guide for SYNC - Rev 1.0

0. How to power the SYNC?

Plug the Power Supply Cable into the Battery Output Connector. After that, plug the 4-pins connector into the Power Input Port. Power on the the SYNC by pressing the power button.

0. How to turn on/off gimbal motors via the SYNC?

Single press on the Mode button will turn on/off gimbal motors.

0. How to change gimbal operation modes via the SYNC?

Double press on the Mode button will turn on Lock/Follow mode

0. How to align the SYNC and the the gimbal after pan drift?

Press and hold the Mode button, then move the SYNC to align with the gimbal. Release the Mode button to control gimbal’s movement.

0. How to setup auxiliary channels on SYNC?

Beside some used channels to control gimbal movements, there are 3 free channels that you can use to trigger your camera by the SYNC. You can check them in AUX menu.

Now select a channel to explore its setting. For example, select channel 6 setting. The following is brief explanation about channel’s parameters, all of them can be adjust by using the navigate button under the LCD display.

  • Reverse: press left/right to change the direction for channel’s response (Normal/Reversed)

  • Trim: press left/right to adjust the value. It likes TRIM on your RC.

  • Limit Left & Limit Right: they are something like the endpoints for each channel on your RC

  • Exit: back to the AUX menu

The things above just described about the setting for each channel. Now, how do you use it?

In the photo above, the first item of this list is Control. When you select it, you should be navigated to the screen where the signal value of the channel will be displayed.

You can navigate left/right to switch to other channel, in the above photo, it is channel 6.

By using Up/Down stick, you can control this channel, the same way with what you do on the RC stick. And when you press and hold the center button, it will return to zero

0. How to calibrate accel SYNC?

Here is calibrating accel procedure for your reference:

Step 1: Put the SYNC on the table, the display looks upward (check the pictures below), then go to Calib screen and select desired calibration. In this case, you should select Calib Accel.

Step 2: The SYNC will ask you to confirm that you understand the process and accept to calibrate the IMU offset. So, keep the SYNC stand still and hit Yes, then wait for few secs until the process is completed.

Step 3: Go back to select Calib Gyro and do the same process. Finally, power OFF -> ON the to reset the SYNC.

0. Do I need to configure any parameter for the SYNC module?

Users do not need to configure any of the SYNC parameters. Before sending to customers, SYNC is ready to work without further adjustments. gTune only offers the function to activate SYNC for use.

Ronin Series

0. Is it possible to control a Ronin by SYNC?

Yes, it’s possible. The videos below are something you can refer to.

0. Which Ronin series gimbal does SYNC support?

SYNC supports to control Ronin, Ronin M, Ronin MX and Ronin 2. 

0. SYNC and Ronin gimbal: Reverse Direction

Supported firmware: Sync for Ronin v3.0.2

You can reverse the direction of the Ronin gimbal by the Axis setting on the SYNC

App & Firmware

0. How to upgrade firmware for SYNC?

Here is upgrading firmware process for SYNC

Step 1: Power ON the SYNC.

Step 2: Connect the SYNC to PC using Micro-USB type B cable.

Step 3: Run gTuneDesktop software. Just select COM port and hit Connect button normally. The software won’t receive any response. Don’t worry, this software is designed to communicate with the gimbal, we just use its upgrading function to install SYNC firmware.

Step 4: Go to Upgrade setting, select the SYNC’s firmware .hex file and hit Upgrade button normally. Wait for a moment, your SYNC should be installed the selected firmware.

Step 5: When the process reaches 100%, this time you can disconnect the USB cable and reset the SYNC. Then go to help setting on SYNC’s display and check it firmware version.





Make sure you installed the Driver for USB before continuing next steps.


1/ Before upgrade:

– Download the latest Software version for MAC or Windows if not installed yet.
– Install USB Driver if not installed yet.
– Download the Firmware in Zip format.
– Unzip to get the *.hex file.
– Connect SYNC controller to your Mac/PC by Micro USB type B Cable.

2/ During upgrade:

– Power ON the SYNC
– Run the software and select Upgrade.
– Follow Steps on the screen.

Gremsy SYNC firmware v2.2.0

06 - 03 - 2017

Gremsy SYNC for Ronin firmware v3.0.2

11 - 07 - 2018

Windows: gTune Desktop v1.4.0

31 - 01 - 2020

Mac OSX: gTune Desktop v1.4.0

31 - 01 - 2020

Android : gTune - Version 2.2.8

14 - 06 - 2018

Requires Android 4.1.2 or later.Compatible with Samsung tabs 705c, Samsung S6,
Samsung S5, Samsung NOTE4, Samsung NOTE3, Google Nexus 9, Google Nexus 7 II,
Ascend Mate7, Huawei P8 Max, Huawei Mate 8, Nubia Z7 mini, Sony Xperia
Z3, MI 3, MI PAD, Smartisan T1.

*Support for additional Android devices available as testing and development 
(iOS - iPhone/iPad) gTune - Version 2.2.8

14 - 06 - 2018

Requires iOS 8.0 or later. Compatible with iPhone 5s, iPhone 6, iPhone 6 Plus,
iPhone 6s, iPhone 6s Plus,iPod touch 6,iPad Pro, iPad Air, iPad Air Wi-Fi + Cellular,
iPad mini 2, iPad mini 2 Wi-Fi + Cellular, iPad Air 2, iPad Air 2 Wi-Fi + Cellular, iPad mini 3, iPad mini 3 Wi-Fi + Cellular, iPad mini 4, and iPad mini 4 Wi-Fi + Cellular.
This app is optimized for iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s and
iPhone 6s Plus.





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