Unable to Update New Firmware

[Tim Wessman]

The firmware update works great... except when it doesn't. There seems to be no repeatable reason as to why nearly all computers work perfectly and others seem to just fail every time. It even is different for certain usb ports on the same computer.

I would recommend putting the calculator into update mode directly. This can be done by holding down the SYMB button while the unit boots. If you unit is booted, just press and hold ON-SYMB to reboot, and then release ON but keep holding SYMB down. It will come up in the "recovery" mode.

Then once it is there, connect the unit to the USB port. Wait until it says that it is ready to use (the windows driver install sometimes takes a ridiculously long time for no apparent reason). Then run the update.exe program directly from the install directory. It should find the firmware in your documents folder that was previously downloaded and start doing its thing.