Suddenly it says I have wrong toolhead

Luzbot 6. I didn’t change the toolhead.
Upgraded to Cura 3.6.25
Upgraded firmware.
Now I get this message:
Wrong toolhead detected. Please change…

I tried auto upgrading the firmware again, but each time I get the wrong toolhead message.

What’s wrong?

Could you send the command M115 to your printer and post the response back here? Also what is the printer / tool head combination that you have selected in cura? Also it might be worth turning on the allow connection to wrong printer setting in the general cura configuration menu.

I’m having the same issue.

I am having the same issue since updating to 3.6.25. I have a Taz 6 with the SE 0.5mm Extruder. The correct toolhead is selected in Cura and I have toggled the “Allow Connection To Wrong Printers” setting in Cura. I still get the prompt saying “Wrong Toolhead Detected” and the window prompting me to update the firmware.

Here are the contents of the M115 command:

< [20:08:39] FIRMWARE_NAME:Marlin FIRMWARE_VERSION:2.0.6.5 EXTRUDER_TYPE:Universal SOURCE_CODE_URL:github.com/MarlinFirmware/Marlin PROTOCOL_VERSION:1.0 MACHINE_TYPE:LulzBot TAZ 6 EXTRUDER_COUNT:1 UUID:845f003c-aebd-4e53-a6b9-7d0984fde609
< [20:08:39] Cap:SERIAL_XON_XOFF:0
< [20:08:39] Cap:BINARY_FILE_TRANSFER:0
< [20:08:39] Cap:EEPROM:1
< [20:08:39] Cap:VOLUMETRIC:1
< [20:08:39] Cap:AUTOREPORT_TEMP:1
< [20:08:39] Cap:PROGRESS:0
< [20:08:39] Cap:PRINT_JOB:1
< [20:08:39] Cap:AUTOLEVEL:1
< [20:08:39] Cap:RUNOUT:0
< [20:08:39] Cap:Z_PROBE:1
< [20:08:39] Cap:LEVELING_DATA:1
< [20:08:39] Cap:BUILD_PERCENT:1
< [20:08:39] Cap:SOFTWARE_POWER:0
< [20:08:39] Cap:TOGGLE_LIGHTS:0
< [20:08:39] Cap:CASE_LIGHT_BRIGHTNESS:0
< [20:08:39] Cap:EMERGENCY_PARSER:1
< [20:08:39] Cap:PROMPT_SUPPORT:1
< [20:08:39] Cap:SDCARD:1
< [20:08:39] Cap:REPEAT:0
< [20:08:39] Cap:AUTOREPORT_SD_STATUS:1
< [20:08:39] Cap:LONG_FILENAME:1
< [20:08:39] Cap:THERMAL_PROTECTION:1
< [20:08:39] Cap:MOTION_MODES:0
< [20:08:39] Cap:ARCS:1
< [20:08:39] Cap:BABYSTEPPING:1
< [20:08:39] Cap:CHAMBER_TEMPERATURE:0

Hello,

We are currently looking into resolving this issue, Your firmware is up to date and you can ignore the wrong tool head detected message for now.

For some reason the TAZ 6 is not detecting the updated firmware when installed.