Ender 3 S1 Pro FW upgrade with resting nozzle "gap" from print bed

Up until yesterday, I was running the firmware that came with the printer (something 24F4 I believe) and had no issues with levelling, z-offset, printing, etc. (all my prints have been great - where I didn’t make a mistake myself, right from the start). I upgraded to v2.0.8.28F4 (no issues during upgrade/flash), this is what the display now shows (see below). Now, entering auto-level results in an approx. 5mm gap from the nozzle to the print bed, which cannot be corrected with Z-offset (-5.00 doesn’t even have enough grab/friction on a piece of paper).

Model - Ender-3 S1 Pro
Screen VER - V1.0.5
H/W VER - CR-FDM-v24S1_301

Any thoughts on this issue?

Hi @mbondfusion and welcome to the forums.

I am not sure where you obtained the firmware but I would recommend sticking with firmwares published on the support pages for your printer as they will have been tried and tested by Creality. The latest version showing on the Creality support pages is 28F4 so I would recommend trying the firmwares from the Creality site here…

Ender-3 S1 Pro Software & Firmware Download

Thanks for the typo callout… The firmware I used was official and is v2.0.8.28F4
As an update, I reverted back to 24F4 and had NO issues with “nozzle gap” when manually OR auto-levelling. I’ll stick with that for now as I need to get some stuff printed. Maybe later I’ll try updating to 28F4 or the next release.

As an aside - I don’t appear to be the only one with this issue. There are couple more individuals on the Ender3S1 subreddit (which I also posted on) noting the “nozzle gap” after updating to the latest firmware.

Thanks for the clarification. I would for now remain on the 24F4 version and would also recommend forwarding your findings on to the support team for them to investigate. Unfortunately not enough of the users on reddit seem to contact support to inform them of these issues so they never get properly looked in to.