hello
ant idea how configure a sensorless probing in a corexy printer with tmc?
Now I am able to configure a sensorless homing with success.

i got the same issues:

Machine Type: CoreCartesian
Probe:
Probe Offset X0.00 Y0.00 Z2.00 (Aligned With & Above Nozzle)
Auto Bed Leveling: BILINEAR (disabled)
current_position= X0.00 Y0.00 Z5.00 : Probe::set_deployed
deploy: 1
Probe::do_z_raise(5.00)
>>> do_blocking_move_to X0.00 Y0.00 Z5.00
> X0.00 Y0.00 Z5.00
<<< do_blocking_move_to X0.00 Y0.00 Z5.00
>>> do_blocking_move_to X0.00 Y0.00 Z5.00
> X0.00 Y0.00 Z5.00
<<< do_blocking_move_to X0.00 Y0.00 Z5.00
reset_bed_level
>>> Probe::probe_at_point X0.00 Y0.00 Z5.00
...(0.00, 0.00, raise, 0, probe_relative)
current_position= X0.00 Y0.00 Z5.00 :
>>> do_blocking_move_to X0.00 Y0.00 Z5.00
> X0.00 Y0.00 Z5.00
<<< do_blocking_move_to X0.00 Y0.00 Z5.00
current_position= X0.00 Y0.00 Z5.00 : Probe::set_deployed
deploy: 1
>>> Probe::run_z_probe X0.00 Y0.00 Z5.00
>>> Probe::probe_down_to_z X0.00 Y0.00 Z5.00
>>> do_blocking_move_to X0.00 Y0.00 Z5.00
> X0.00 Y0.00 Z-10.00
<<< do_blocking_move_to X0.00 Y0.00 Z-10.00
current_position= X0.00 Y0.00 Z5.00 : sync_plan_position
<<< Probe::probe_down_to_z X0.00 Y0.00 Z5.00
SLOW Probe fail! - Triggered early.
<<< Probe::run_z_probe X0.00 Y0.00 Z5.00
current_position= X0.00 Y0.00 Z5.00 : Probe::set_deployed
deploy: 0
Probe::do_z_raise(5.00)
>>> do_blocking_move_to X0.00 Y0.00 Z5.00
> X0.00 Y0.00 Z5.00
<<< do_blocking_move_to X0.00 Y0.00 Z5.00
>>> do_blocking_move_to X0.00 Y0.00 Z5.00
> X0.00 Y0.00 Z5.00
<<< do_blocking_move_to X0.00 Y0.00 Z5.00
Errorrobing Failed
[ERROR] Errorrobing Failed

what to do'?

Please attach your configuration files.

Please verify if I have the following correct or not:

• Sensorless homing is enabled and is working reliably.
• Homing Z to Z min.
• Probing fails per the log you posted.

Do you probe at the same feed rate as you home? Don't know if it makes a difference or not but if homing is reliable you may want to use that feed rate as your Z_PROBE_FEEDRATE_SLOW.