SDXC cards will be formatted as exFAT by default, a format type not supported by VBOX LapTimer. You can still use
them, as long as you reformat them to FAT32 first. There are various free third-party applications available online to
format SDXC cards.
Memory Usage
If the SD card you use has less than 10 MB of space
available you will see a warning symbol
flashing periodically indicating the amount of memory
available.
Square Button Function
Depending on which mode is currently active on the
screen, the function of the square button will change.
The splash screen shown when scrolling through the
menu describes the function of the square button in
each mode.
You can also find the complete list below:
Mode
Function
Speed
Start and stop logging
Max Speed
Reset max speed value
Speed Bar
Set centre speed and speed display range
Predictive Lap Timing
Single press fixes the current or stored lap as the
reference lap, depending on the chosen settings.
https://en.racelogic.support//Product_Info/Lap_Timing_and_Pit_Timing/VBOX_LapTimer/
User_Guide_%E2%80%93_VBOX_LapTimer/01_Getting_Started_%E2%80%93_VBOX_LapTimer
4