Licensing

Each complete unit ships with its license installed; with the standalone kit you install it yourself, with the activation key from the box. The license is issued for that one unit, and it identifies the unit to us: the license hash on the Licensing screen is what you quote when you download software updates and when you contact support.

The Licensing screen

Open Settings › Licensing. Under License it shows the Status, Activated — permanent, or Activated — expires … for a license with an end date, who it was Issued to, and the License hash: 12 characters in three groups of four, such as ABCD 1234 5678. The hash is an identifier, not a password.

Install a new license

You may be sent a new license file, for example to add a feature or to correct the name it is issued to. It is a small .lic file, and it installs from a USB drive.

1. On a computer, copy the file into a folder named KFDPro at the top level of a FAT32-formatted USB drive.

2. Plug the drive into the unit's USB-A port and open Settings › Licensing › Update the license. The screen looks in the drive's KFDPro folder; tap Rescan for license files if you plugged the drive in afterwards.

3. The license for this unit is listed under For this unit, with who it is issued to and what it adds or removes. Tap Install, read the confirmation and confirm.

If the drive isn't seen (some Android versions don't allow it), tap Choose the license file and pick the file yourself. The first time, the screen may ask you to allow the app access to the device's storage: tap Allow access to storage, turn the toggle on and come back.

A working license is never replaced by a file that isn't valid for this unit. Files for other units are counted (2 other license files on the drive are for other units.), so one drive can carry the licenses for every unit you own, and a file that doesn't verify is listed under Cannot be installed with the reason. Installing a license is recorded in the audit log.

Send a license request

When you ask us for a license, we need two values that identify the unit. Rather than copying them by hand, tap Save the license request, at the bottom of the Update the license screen (or on the Licensing screen while no license is working). It writes a small text file named for the unit through the save dialog; save it to a USB drive and email the file to [email protected]. It contains no key material.

If the app says Licensing required

If the app opens on Licensing required, the installed license was refused or none is installed, and the screen gives the reason. Tap Open Licensing.

• The license is not valid yet. Check the device clock. or The license has expired.: the unit's clock is probably wrong. The Licensing screen offers Set the date and time; see Date and time.
• Any other reason: contact support. Save the license request (above) and send it with the reason the screen shows. Install the license file you receive with Find a license on a USB drive.

Nothing on the unit is changed while the license is refused: your keys and settings stay where they are.