Problems flashing SB2209 (RP2040)

[Feelflow]

Hey,

I'm having problems flashing my SB2209 (RP2040) Toolhead board. (I use Manta M8P 2.0 + CB1)

I followed this guide here: https://canbus.esoterical.online/toolhead_flashing.html#katapult-is-now-installed

After flashing the catapult via USB, I shut down and switch to the CAN cable.
After the restart I also find both MCU with UUID. (python3 ~/katapult/scripts/flashtool.py -i can0 -q)

Then I want to flash Klipper and get the following:

biqu@BTT-CB1:~$ python3 ~/katapult/scripts/flashtool.py -i can0 -u 43c7cab7362b -f ~/klipper/out/klipper.bin
b'5623'
Connecting to CAN UUID 43c7cab7362b on interface can0
Sending bootloader jump command...
Resetting all bootloader node IDs...
Detected Klipper binary version v0.12.0-384-g847331260, MCU: rp2040
Attempting to connect to bootloader
Katapult Connected
Software Version: v0.0.1-96-gbc1ecea
Protocol Version: 1.1.0
Block Size: 64 bytes
Application Start: 0x10004000
MCU type: rp2040
Verifying canbus connection
Flashing '/home/biqu/klipper/out/klipper.bin'...

[######################ERROR:root:Flash Tool Error
Traceback (most recent call last):
  File "/home/biqu/katapult/scripts/flashtool.py", line 835, in run
    await flasher.send_file()
  File "/home/biqu/katapult/scripts/flashtool.py", line 427, in send_file
    resp = await self.send_command('SEND_BLOCK', prefix + buf)
  File "/home/biqu/katapult/scripts/flashtool.py", line 406, in send_command
    raise FlashError("Error sending command [%s] to Device" % (cmdname))
FlashError: Error sending command [SEND_BLOCK] to Device

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/biqu/katapult/scripts/flashtool.py", line 1096, in main
    await sock.run()
  File "/home/biqu/katapult/scripts/flashtool.py", line 842, in run
    await flasher.finish()
  File "/home/biqu/katapult/scripts/flashtool.py", line 485, in finish
    await self.send_command("COMPLETE")
  File "/home/biqu/katapult/scripts/flashtool.py", line 406, in send_command
    raise FlashError("Error sending command [%s] to Device" % (cmdname))
FlashError: Error sending command [COMPLETE] to Device

Can you help me please?