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Pro Timing is currently working with Sam to get the CP 540 back in operation again.

Remove batteries, reinstall batteries, press reset button with unfolded paper clip.

Try to restart, if ok proceed.

If not then updating the firmware using the two step process is needed. The older bootloader has to be used first, then the newer.

This can be done on site but it is better to return the unit to our service centre. 

Hi all! thanks for sharing your experiences regarding this issue

I removed the AA batteries for 3 days, and reseted it many times, even pressing the reset button in the back.  I tried to update firmware and it was unable to accept the firmware.

By the way, the screen never shows any character or light, only the printer says:

FWT Timeout 1
FWT Timeout 2 6
FWT Timeout 0 ...

Is there any method to revive the unit?
Is there a proven firmware that is better to avoid this issue?

any help is highly appreciated.

regards,

Just to facilitate more information (following command set in above pdf):

Even though the CP540 is printing "FWT Timeout 0 ..." error, I can communicate my PC with the unit with "#ID" commands and even with "#PL ANY_MESSAGE" and printing on the paper the "ANY_MESSAGE", so I conclude the unit can still communicate (with correct bauds and RS232 config) but not to enter in the normal behaviour. I attach the image showing the ID of my unit and other info.

Is there any other debug command to detect which part of the hardware/firmware could be wrong?



On the other hand:

When I try to burn VC02 firmware it gets always stuck in the "Download not Fully Completed" in the “Downloading Keyboard Firmware" stage.



cheers!

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