Updating an HDZero VTX
The firmware files can be downloaded from here.
Firmware
Each revision contains firmware for all VTX and VRX. The revision number is formatted as rev_ddmmyyy.zip, where "ddmmyyy" indicates the date of release.
Contents of each revision:
VTX Update Guide
The zip file for each VTX contains HDZERO_TX.bin.
Steps to Update VTX firmware
- Format your microSD card (Choose FAT32 and Allocation Unit size to 4096 bytes)
- Power off your VRX if it is already on.
- Copy the HDZERO_TX.bin file from corresponding VTX zip file onto your microSD card, and insert the microSD card into the VRX module.
- Connect one end of your Firmware Update Cable to the VRX and the other end to the VTX you want to update.
- Make sure to connect the mini-HDMI cable to your VRX and to your goggles/screen to see the firmware update progress.
- Power on the VRX module.
- If you get the "Wait to Connect VTX" or "Check Cable..." message, make sure that you did step 4 right.
- If you get the "Firmware update failed" message, repeat the procedure from step 1.
- If you get the "Firmware update successful" message, you are set.
- HDZERO_TX.bin file is automatically removed after a successful update.
Handy Tip: If you create an empty file named "DONOTREMOVE.txt" in the root directory of the microSD card, HDZERO_TX.bin will not be removed after each successful update. This is convenient when you update several VTXes in succession.
VRX/Goggles Update Guide
Steps to Update VTX firmware
- Disconnect the cable that connects the VTX to the VRX module (or to your glasses) if it is still connected.
- Unzip the contents of the appropriate zip file (starting with RX5.1 or ScoutHD) to your microSD card.
- Make sure to connect the mini-HDMI cable to your VRX and to your goggles/screen to see the firmware update progress.
- Turn on the VRX module, and wait for the "Success" message to be displayed.
The firmware will be automatically deleted from the microSD card after the update.
Note: Do not turn off your VRX module (or goggles) while the firmware update is still in progress. Make sure that the message "Update Completed" is displayed, otherwise the VRX/goggles will not boot up correctly.