CFW ACE1 v1.1.2 / ACE2 v1.0.7 + Flash Tool v1.0.3 (beta 2)

Beta / pre-release — test build for #4
(OpenSpool: one SKU per spool). Not yet verified with a real OpenSpool tag on hardware.
Feedback welcome — please include the slot output (sku) and, if possible, your tag's JSON.

Assets

File	What	Version
ACE_V1.3.863_20261103.bin	CFW for ACE 1 Pro (Gen 1)	CFW v1.1.2 (beta)
ACE2_V1.0.7_20261103.bin	CFW for ACE 2 Pro (Gen 2)	CFW v1.0.7 (beta)
AceFlashTool-v1.0.3-beta.2-windows-x64.zip	ACE Flash Tool	v1.0.3 (same as beta.1)

Flash the image that matches your ACE. Use Flash Tool v1.0.3 (included) — required for the
Kobra S1 Max / S1 V2 / K3 Max V2 and for an ACE 2 Pro on KlipperGo printers.

CFW — ACE 1 Pro v1.1.2 / ACE 2 Pro v1.0.7 (beta)

Changed

• OpenSpool: one SKU per spool instead of the constant OPENSPOOL (#4). The sku is the only
  per-slot text that reaches the printer and host tools (e.g. Rinkhals / Spoolman), so all OpenSpool
  spools used to look identical and a spool swap could not be detected. Now:

  • OS-<spool_id> if the tag has a spool_id (1–16 characters A-Z a-z 0-9 . _ -, e.g. a Spoolman ID → OS-24)
  • otherwise OS-<UID>: the tag's chip UID in uppercase hex (e.g. OS-04A1B2C3D4E5F6)
  • OPENSPOOL only if neither is available (previous behaviour)

  Longer or unusual spool_id values fall back to the UID instead of being cut off.
  ACE 2 Pro side effect: the printer's remaining-filament estimate is now kept per spool.
  Thanks to Godless50 for the UID idea (#7).

ACE Flash Tool v1.0.3

Fixed

• Kobra S1 Max (20029) flashing failed with update-failed (code 10802) right after the download (#1).
• Kobra S1 V2 (20031) was treated as AVATA, Kobra 3 Max V2 (20032) was unknown — both are KlipperGo now.

Changed

• ACE 2 Pro images are allowed on KlipperGo printers; if the printer reports the ACE model, the image
  must match the selected ACE (otherwise flashing is blocked and the reason is logged).
• Test Connection shows the model of each connected ACE (e.g. model=ACE 2 Pro).

Checksums (MD5)

3192b760d2dc85c543439f3ab3672e62  ACE_V1.3.863_20261103.bin
74809fd8e91c32af2c5a6f4f3a121c14  ACE2_V1.0.7_20261103.bin