How to Flash Skyzone SKY03S/SKY03O Goggles Firmware

by Oscar

One great thing about the Skyzone SKY03S and SKY03O FPV goggles is that you can update the firmware for bug fixes and new features. In this post I will show you how to flash firmware on the SKY03 series goggles.

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My review of the

How to Update SKY03O Goggles Firmware

The same procedure can be applied on SKY03 and SKY03S goggles.

Before updating:

  • Make sure battery is fully charged – just in case
  • Go to system version in the menu, and write down the current version. This is to verify if the update has been successful in the end

Download firmware:

Connect the goggles to your computer via the USB port (located on the bottom of the goggles), and plug in the battery but DON’T power it on yet.

There is a small button hidden inside the left head strap hook. You have to hold down this button with a pair of tweezers, or a small screw driver, then press the power button to turn on the goggles. You can now release the “hidden button”.

It can be difficult to see or reach the button, but pressing it makes an audible “click”.

Your computer should now automatically install the driver for the goggles, and you will find a new removable storage added to your PC.

Copy these firmware files to the newly added drive (Not the SD card):

  • SKY03*_ST32_APP_V******.bin
  • SKY03*_TW_APP_V******.bin

Note: ****** is the version number

The files are not big, but the copying can take a while, around 30-60 seconds, because it’s installing the update at the same time. Once the files are finished copying, give it a few more seconds, then unplug the battery. Restart the goggles to check system version and see if it’s been updated.

DVR Update

The DVR firmware needs to be updated separately.

  1. Take a TF card (micro SD card), and format the card to FAT32
  2. Download the DVR firmware from the link at the beginning of this tutorial, the file you need is “FIRMWARE_F”
  3. Copy the file to the SD card, insert it in the goggles and turn it on
  4. Go to the system menu and choose DVR FM upgrade

It will take 1-2 minutes to update the DVR, don’t turn the goggles off during the update.

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Marc 17th August 2023 - 12:18 am

Guys don’t update if you are not sure it works.
It happened to me recently… waiting for the solution,

If anyone has versions prior to v1 please let me know.

XC 6th September 2020 - 4:32 am

Hello, is your problem solved. Mine also doesn’t have an SN number。

Davide 21st June 2020 - 9:58 am

hi guys, even if it’s quite old discussion, let me share my experience, my hope it could help someone there. I did the upgrade as described, I used the right FIRMWARE, and all was smooth and easy, but when I restarted the goggle, playback function was gone or at least I was not be able to access to that function in the way it is described in the manual “long press (3s) of REC button” as I was used to do. Reading the release note I noticed that playback function was added to OSD so practically with the upgrade it’s changed the way to access playback mode. So how to access it, one quick press on REC button then OSD will pop up on top then quick press of MODE button and menu will be pop up, Playback option is there, select it and you done. Hope it could help guys.

Kenneth Jackson 20th April 2020 - 5:20 pm

Hi, has the firmware issue been resolved?
I almost flared the goggles. I’m glad I read your article first.

Tim 22nd November 2019 - 6:03 pm

Hi Oscar,
I am the same as Ben, updated to latest firmware and no DVR playback.
Should have left them alone.


Oscar 1st December 2019 - 4:12 pm

There are quite a few people having issues after the firmwware update and the main reason was just flashing the wrong firmware.

Ben 16th November 2019 - 3:16 pm


My 03o were working fine but after i upgraded the FW to the newest


1. the Switch Input freezes when i´m in the menu and want to switch to the last “System”-Layer! I cant even turn it off. only unplugging the Dc-Plug helps!
2. the DVR-Playback mode does not enter anymore
3. the Google did also freezes one time i booted it up

I can record… but the Playback mode does not enter after Pressing the key..

there is no older FW-Versions available on the Website.. Is there a possibility to get the older Version anymore..

Do you know this issue? I did everything exactly like u or skyzone told how to do!

Oscar 18th November 2019 - 6:37 pm

Sorry, but you’d have to contact Skyzone customer support about this.

nad 13th September 2019 - 11:42 pm

lmao.. flashed the wrong firmware. thanks for the quick reply oscar. really appreciate it.

Nad 13th September 2019 - 9:58 pm

Hi Oscar, I tried upgrading the firmware for the sky03o. After copying the files to the new drive, I unplugged the cables and plug it back in and tried to switch on my goggles but there was nothing on the screen. There was a beep sound if I long press the power button but that’s it. The goggles worked fine before I tried to update the firmware. Please advise on what I should do.

Oscar 13th September 2019 - 10:46 pm

You probably have flashed the wrong firmware.
Skyzone somehow took the SKY03O firmware download link down today or yesterday, so you probably downloaded the SKY03 which is a different goggles. I have no idea why they did it (Face Palm)
I’ve asked them fix the download link, hopefully when you flash the goggles again with the correct firmware it will work again. If you still have issues please contact Skyzone’s customer support.

Oscar 19th August 2019 - 11:03 pm

To Norman Brisson,
Use a torch to light up the hole, you should see a push button facing side way. You will need something that is tiny and long to reach the button.

Norman Brisson 5th July 2019 - 3:42 pm

Hello, for some reason I cannot see the hidden switch, would I need to dismantle it to see
more inside for this switch? For such an engineered product this fw upgrade protocol is
so back time.

Many Thanks

Arif 28th June 2019 - 6:17 pm

hi, do you have this firmware version? FW1: v1.1.8
FW2: v1.3.0
FW3. v01.01.00.08
HW. v1.2.3.6,
because the firmware sent by Skyzone is lower than what I previously had
FW1: v1.1.7
FW2: V1.2.9
HW: (as I mentioned above) and the serial number is gone

Oscar 15th July 2019 - 4:09 pm

Sorry I don’t. Might be best to email Skyzone directly in this case.