TPC recovery

The TPC has a built-in failsafe against firmware problems: it stores two versions of firmware. So if one copy of the firmware fails to load, or becomes corrupted due to a loss of power during a firmware reload, the other can be used instead. However, in the event that the TPC will not startup, there is a method to recover the TPC using the memory card.

Please follow these instructions carefully:

Remove the memory card from the TPC and insert it into your computer
Wipe all files on the memory card (ensure you have made any necessary backups)
Locate the firmware directory in the Designer installation directory or app bundle*
Copy the file tpc.fw from the firmware directory to the memory card
On the memory card, rename the tpc.fw file to tpc.app
Reinsert the memory card into the TPC and restart the TPC. The TPC will boot, but will take longer to boot than normal. Please be patient and wait for the Active LED to illuminate continuously
Connect to the TPC using Designer and reload the firmware as normal
Remove the memory card from the TPC and insert it into your computer again
Delete the tpc.app file from the memory card
Reinsert the memory card into the TPC and restart the TPC.

* To locate the firmware directory in the app bundle on Mac OS X, please follow these steps:

Navigate to your "Applications" folder located on the the Hard Drive, typically named "Macintosh HD"
Locate the application called "Pharos Designer"
Right-click (or control-click) on it and choose "Show Package Contents" from the menu that appears
Now navigate to Contents/Resources/firmware to find the file tpc.fw.