Installation Guide For Official Ender-3 V2 1.1.6V BLTouch Firmware by Creality 30

BLTouch Installation

BLTouch Mount for Ender3V2 –
Use the two screws provided by BLTouch to screw it in.

If you are using a different extension wire, please pay attention to the wire colors above. Match them based on colors from left to right according to wires on BLTouch


As of 31st of July, Creality removed the 1.1.6 BLTouch firmware from their official site. For whatever reason it might be, below is a mirror link to the previous firmware v1.1.1 BLTouch by Creality which works.

For Ender 3 V2 no bootloader intallation is required. Copy the firmware into your SD card and then slot it in, the printer will begin flashing once you reboot it. Do remember that you need a different filename each time you flash a new firmware eg. firmware1.1bin > firmware1.2bin, else the system will ignore it.

And remember to add “M420 S1 Z2” in Cura!

VERY IMPORTANT Add M420 S1 Z2; after the G28 in your start G-code
in the starting G-code of your cura profile. To enable leveling on every prints. As the current marlin for Ender 3 V2 is unable to make “leveling enabled” persistent after reboot.

M420 S1 Z2 ;Enable ABL using saved Mesh and Fade Height

This line of code always appear in other printer profile such as CR10SProV2/Ender5Plus where there is BLTouch built in.

What you might need

Personally I have added a printed BLTouch spacer to add some buffer between bed and nozzle, so BLTouch has more room for probing. If you are facing issue where nozzle is hitting bed when BLTouch is probing, mostly caused by uneven bed (eg. sides nearer to hotend is higher), you might need to try adding a spacer. But do note that adding a spacer will make your z-offset at around -2+

BLTouch Spacer –

Steps to produce a good leveling

  • As this firmware is provided by Creality, there is no AUX tool or Z-Offset Tool included. Please refer to CHEP’s guide for how you can level your bed with a piece of paper.
  • One of the important element of having a good bed leveling is Z-Offset. Get a good offset at the center of the bed, gauge it with an A4 paper. Use the Z-Offset setting to set closer or further from bed.
  • Once you got your Z offset, go to main menu and press “Leveling”. It will probe 3×3 points and save the mesh to your printer.
  • Done and start printing!


  1. i set my bltouch on my ender 3v2 and install the 4.2.2(i chek and that’s my version) sofware that i get from the creality’s site (Ender-3 V2-Marlin-2.0.1-HW-4.2.2-mainboard-V1.1.2-Compatible with BLTouch and filament this one, i dont have filament detection but i don’t think it will affect) i set my z-offset at -2.10 but the bltouch is not lvling at all… what can i do?

  2. I has just started use your firmware, it is fantastic. thank you very much..

    While sometimes, I do not know why…Printer firmware rises error ad g29, both from octopi “Offline (Error: Probing Failed)”, direct usb or sd card. My initial gcode is in the following;

    ; Ender 3 V2 Custom Start G-code
    G92 E0 ; Reset Extruder
    G28 ; Home all axes
    G29 ; DO ABL
    ;M420 S1 Z2 ;Enable ABL using saved Mesh and Fade Height
    G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
    G1 X0.1 Y20 Z0.3 F5000.0 ; Move to start position
    G1 X0.1 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line
    G1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little
    G1 X0.4 Y20 Z0.3 F1500.0 E30 ; Draw the second line
    G92 E0 ; Reset Extruder
    G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
    G1 X5 Y20 Z0.3 F5000.0 ; Move over to prevent blob squish

    What can I do? Thanks..

    1. “Offline (Error: Probing Failed)”

      Make an auto leveling on the printer first and after save config.
      Restart printer and Octopi…Voala…that helped me 😉

      1. Thanks for the answer, sorry I miss that where can do that, I missed that part. Could you explain more in more detail please?


  3. Ender 3 V2 4.2.2 board. Every time I update the firmware with adaptor for the BL touch; the printer just goes in to an alarm state and nothing on the display. I must re-flash back to default firmware. Where do I find the correct DWIM_SET files? Is there a need to update both the printer and display?
    Any idea?


    1. your port may set wrongly, no need update display,

  4. I installed my BLTouch with the included adapter board, but anything involving the z axis is not working. I’ve reflashed the firmware with separate file names, and the BLTouch is installed correctly, as it functioned with the official Creality firmware.

    Any advice or help anyone can give would be greatly appreciated!!

    1. this firmware is for Ender 3 v2, you don’t need adapter board for it.

    2. Had the same problem. I noticed there was something of about the grd. so I ended up switching two wires around and using the dedicated port on my 4.2.2. board.

  5. What would be causing the bltouch to start blinking red after probing 8/9 during bed leveling? It has also happened randomly at probe 5/9 and others. I just flashed to firmware Ender-3 Pro- Marline2.0.1 – V1.1.2 BLTouch.bin and direcly plugged both connectors into the slots as you illustrated. It seems to auto home fine and will start the auto bed level, but then just stop before ever getting through it all. I had tried it with the Z-stop switch plugged in and unplugged.

    1. the two pin is loose, us z stop instead.

  6. Hi, can i request some assistance?
    so i flashed to this version with the bltouch.
    I manually leveled the bed then I tried to level with the printer option “level” but it seems like the Z-Offset is still to high.

    I lowered the number to (-5) z-offset (in the z-offset option under Prepare) but it doesnt seem to be lowering the nozzle. do you have any thoughts on how to correct? Thanks!

    1. is ur z switch stop blocking?

  7. I apologize in advance if this has been asked but is there any way I can get the config files specific to the E3V2 BL touch slow? Thanks

    1. disable BLTOUCH_HS_MODE

  8. What changed on this page with the January 10, 2021 update? Thank you for supporting BLTouch on the Ender 3 v2!

    1. 2.0.x.16, with latest marlin mostly.

  9. I have installed your software for my Ender 3 v2 and BLTouch and the nozzle is to high off the bed. I have leveled it multiple times and still to high what can I do to make it work?

    1. it doesn’t save, put g29 after g28

  10. Wonderfull firmware

    when i stop print, the steppers is not disable, why?

  11. Thank you very much. Is there a simple way of turning off the Red BLTouch LED during printing? It’s messing with the camera I use to monitor prints.

  12. Hey Guys,

    A big thank you. The BL touch was a priority for me (Ender 3 v2 is not a week old) as the money and effortl out weighed wasted time and filament. Your FW update is very user friendly and works really well. Big thumbs up.

    Tomorrow BTT smart filament sensor will get fitted. I think I’m correct in thinking that you have also solved that for us.

    Take care & thanks.


    1. si vous posez un capteur filament BTT il faut indiquer le Gcode suivant dans les propriété de l’imprimante du slicer M412 S1 ;Filament Renout Sensor On

  13. Hi, i’m following your instruction regarding install bltouch for ender 3 v2. When z stop switch unplug my z axis cant move down but when plug in z stop switch my bl touch light always red color

    1. Had the same issue using the official BLTouch firmware v1.3.1. The Smith3D version works for me (see

      Haven’t printed with this firmware yet, but at least the BLTouch is actuating and zeroing correctly.

  14. Hi,

    First of all thank you for all information. I have the printer for 2 days. And he printed very well without BLtouch.
    So I connected BLtouch orginal shackle by sawing half of site of extruder and drilled hole for second bolt.
    First I installed software with official firmware. And changed wiring all in one connector.
    BLtouch was on but performed no auto levelling.
    Secondly I installed smith software. And changed wiring in separate connectors .
    Things that are observered:
    – very nice z- tool (mine -4,20)
    – very nice aux tool
    – minor: in menu control ‘storage is ‘orage’
    – when I power up the printer it make very high noice.
    I think it is fan this is not the case with official software.
    After 30 seconds it has normal noice.

    Overall very nice site, thanks.

    1. I experienced the same. No auto leveling with original Creality firmware. Downloaded the Smith firmware…. still no auto leveling and I experienced thermal runaway on both the bed and the hot-end. Reverted back to original Creality firmware so that I can print at least. I have the ANTCLABS BLTOUCH. It works as described, measures the bed 2 times at 9 different points but does not auto adjust during prints. I tried with the Z-stop both connected and disconnected.
      Also like the additional features as described by Office Offermans.

      1. If what you need is auto leveling before every prints, you will need to add G29 in pre-start gcode. We have added a small note on the guide

      2. You have to add some code to your Cura, so it actually uses the mesh created from autoleveling. Did you do that?

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