PSA #4 : 36.42.4 FW - Setting the time.
The release notes contain the following instructions for setting the date and time of your ground side hardware:
Method: Create a new .txt text file on the root of the SD card, name it as "Avatar_time.txt" (case sensitive), fill in the time format: year, month, day, hour, minute, and second (yyyy-mm-dd hh:mm:ss) e.g. 2023-12-31 23:59:00 Save the file. Put the SD card in the goggles and reboot. Goggles will update the time as per the date and time in the Avatar_time.txt file.
Some further help may be in the below information:
Note that your operating system may be hiding the file extension so be careful not to name the file "Avatar_time.txt.txt". Before proceeding confirm the correct file name.
You can check that the process of changing the date and time is working by:
- Powering off the goggles/vrx
- Put the Avatar_time.txt file on the SD Card
- Insert the SD card in the googles/vrx and power on the goggles/vrx.
- Wait for the boot cycle to complete and show the main menu
- Do not power off your goggles/vrx
- Power on your vtx and record a short DVR.
The recorded DVR should then have the date and time as per the Avatar_time.txt file contents.
As the VTX does not have a RTC battery to retain date/time, the VTX will get it's date/time from the goggles/vrx when it connects, so there is no VTX specific process to follow.
If you're using V1 goggles, HD Recon goggles or VRX, you may find the time doesn't 'stick' between power cycles. This is because the internal RTC (Real Time Clock) battery is not charged enough to keep the memory alive to retain the date/time. As suggested in release notes, keep power connected to your goggles/VRX for 15-30 mins to allow the RTC battery to charge. The 36.42.4 FW also includes code that enables charging of the RTC battery, whereas this did not happen on prior FW releases, meaning the time was eventually lost after RTC battery dropped below a certain voltage. For the Goggles X, this unlikely that due to the age of the Goggles X, the battery would be depleted enough yet to lose date/time.