SpeedAngle have made some changes to all units purchased after 26th September 2014, these units are firmware upgradable.
If you receive your package with a red sticker on the packaging marked "firmware upgradable" then your unit can accept future firmware changes.
To find out your current firmware on the device simple hold down the "Select" button for 6 seconds and then switch power on.
Latest version is 3K4M.52 which is upgradable, all previous models are not upgradable at this time.
We currently only stock the new Firmware Upgradable Units.