I think i broke it

[Monster Delta]

@chrishamm hi thanks for the response but i have tried all different versions of both bossa and sam ba

[chrishamm]

Did you try updating the driver as well?

[Monster Delta]

@chrishamm yes

[Monster Delta]

I also tried bossac cmd line but it just says erase flash but doesn't do anything more

[chrishamm]

Well, sometimes USB3 ports don't work and can cause various problems. Try flashing it over a USB2 port if possible. If that fails, I suggest you try the same procedure again on another PC and/or attempt to boot from a Linux live CD like Ubuntu. See https://tutorials.ubuntu.com/tutorial/try-ubuntu-before-you-install#0

[Monster Delta]

@chrishamm ok thanks I'll give that a try this evening

[Monster Delta]

i just noticed that the main atmel chip is getting so hot it burns my finger to touch it

[dc42]

What type of Z probe is it, and how did you have it connected to the Duet?

[dc42]

PS what is the PCB revision number of the Duet?

[Monster Delta]

@dc42 hi its was the smart effector connected to the 4pin header on the duet board. The board is v1.01

[dc42]

It sounds to me that there has been a transient on the +3.3V rail which has damaged the processor (but not wrecked it completely) and the SD card. I guess that transient was caused when the Smart Effector was unplugged.

We may have some refurbished v1.01 boards available. If you are interested in buying one at a special price to replace your board, then please email info at duet3d dot com.

[Monster Delta]

@dc42 thankyou i will definately send an email.