Firmware upgrade fails occasionally

[duggerd]

Firmware upgrades or unit initializations will occasionally fail with an error message, or the GUI will just hang indefinitely.

CPU usage is high during the upgrade process, which might be a factor.

Add automatic recovery attempts, as well as display a message pointing to documentation on how to recover the unit manually.

Document in the manual how to recover the unit manually.

[duggerd]

Manual recovery instructions:

1. Disconnect the KFDtool unit from the USB port
2. While holding the recessed button besides the USB port with a paper clip or similar, plug the USB cable in
3. Navigate to the Utility->Initialize Adapter page in the KFDtool software
4. Select the firmware upgrade file
5. Select the model and hardware revision number that is printed on the label on the top of the unit from the drop down selection
6. Click 'Initialize'
7. Click OK to the warnings that pop up
8. A message should appear after a few seconds stating the firmware has been loaded successfully

If a message appears stating there are no devices connected in BSL mode, perform steps 1 and 2 again. You should hear a USB device detected chime from Windows when the device is connected.

[mattames]

@duggerd this issue popped up for one of the earlty adopters - looks like this is the only place the fix is documented too.