Constant errors

[jay_s_uk]

IIRC, 3.0-beta12 had an issue that prevented updating from the SD card for some users.
The only way to upgrade is to bossa the board.

[A Former User]

Super fun time, this thing is true POS...

Not even this BOSSA can do it, geting errors here and there.

Verify failed
Page errors:1114
Byte errors:563942

And now the board is compleatly useless...

[dc42]

Before you clicked Write in Bossa, did you (a) check Erase All, Lock, and Boot from Flash in Bossa; and (b) remove the Erase jumper from the Duet?

[A Former User]

@dc42

Yes

[A Former User]

Stuck on Writing page 0 (0%) for the past 10min

[jay_s_uk]

What OS are you flashing from?

[A Former User]

Windows 10

[jay_s_uk]

Windows can be a bit odd sometimes.

It's possible to use bossa from a pi if you have one.

[A Former User]

@jay_s_uk

Hell no im not trowing any more money at this thing, like i have stated its discusting that the product quality is so bad.

[jay_s_uk]

I'm not suggesting you spend any more money.
I was purely stating that windows can be odd with USBs (outside of the control of the Duet team).

I would also suggest trying connecting through a USB hub (preferably powered) as your PC may not be able to supply enough power.

If you don't have one of those but you have a laptop, you can power the Duet 3 using 12-32v and connect the laptop via USB and try that way. Just make sure the laptop is ran off battery power only.

[A Former User]

No luck, have none of those.

[A Former User]

What option do i have left, was able to aquire a laptop from my niece and even powering the duet with the PSU and trying with the laptop results in the same thing.

[dc42]

@Torppa said in Constant errors:

Verify failed
Page errors:1114
Byte errors:563942
And now the board is compleatly useless...

This is almost exactly what I get when i use Bossa without removing the Erase jumper first. I am flashing version 3.1.1 so I get slightly different results:

After removing the Erase jumper, pressing Write again and then Verify, it works:

So please double check that you have removed the correct jumper:

[A Former User]

I did not have the jumpper on, still did the reset and erase again and no luck

[dc42]

Looks like the MCU is not coming out of Erase mode. Try the following:

• Put the Erase jumper on
• Press the Reset button on the Duet
• Remove the jumper
• Press Reset again
• Reconnect Bossa (you can normally just click on the COM port dropdown and select the same COM port again)
• Ensure that Erase All, Lock and Boot to Flash are checked (but not the other boxes)
• Press Write
• Press Verify

The Write operation should display a progress bar and take 15 seconds or longer.

[A Former User]

@dc42
Does not work

[dc42]

Are you using VIN power to the Duet, USB power, or powering it some other way?

[A Former User]

BOSSA just wont write.

And USB power

[dc42]

USB power alone may be insufficient. Please read the notes on avoiding USB ground loop problems at https://duet3d.dozuki.com/Wiki/USB_ground_loops and try again with VIN power. I assume that you have the 5V regulator on the Duet enabled.

[A Former User]

Running on VIN and a laptop results in the same problem.