SUNLU S8 plus + BL Touch

Hello, I have an uncommon problem and I can’t find a solution to it, I need help from an expert or someone who knows how to solve it

Hello, there.

Your first ever post was deleted, so it got flagged.

You don’t really provide any details in the post above, so you’ll need to supply more details for folks here to try and help you.

It looks like you’re trying to flash firmware to an ATMega2560.

What type of device are you trying to flash?

Where did you get the firmware that you are trying to flash?

What filename is it?

What kind of V1 machine are you trying to get running with that flash?

Why did the device need to be flashed in the first place?

The device type is a SUNLU S8 PLUS 3D printer and I am trying to add a BL TOUCH sensor to it. All these steps that I did before, you can see them here 🔧 BLTouch Holder and firmware Marlin 2.1.1 for SUNLU S8・Free 3D File for ・Cults and the program as well. The reason for installing this sensor is its accuracy in leveling the floor

That’s not a machine we work with here, so you may find very little knowledge about it.

generically, back when we were working with old RAMPS boards, XLOADER upload failures were generally of three types- bad driver, something else like a sender or slicer having the port open, or a bad connection to the target device.

You may want to reinstall the windows driver, reboot windows and attempt again after confirming no other softis running, and double check that when you connect your device a COM port shows up in device manager.

Maybe someone else here in our community has other suggestions. Good luck.

1 Like

Thank you very much. This means that this community does not have an answer to my question.

Not sure about the Sunlu in particular, but serial file transfers in general can fail due to a number of reasons.

  • incorrect Baud rate
  • incorrect file transfer protocol (XModem vs YModem vs other)
  • Incorrect COM port selection
  • Incompatible file type
  • COM port in use by other program
  • Faulty serial cable or incorrect pinouts

The first step is usually to establish and confirm a working serial connection to the device from your computer’s serial interface program. Once you can see the commands echo from the device, then you’ve eliminated 4 of the items, and are left with incompatible file type or incorrect file transfer program.

I watched the linked instruction video (YouTube).

  • Did you successfully install the drivers first?
  • Have you confirmed that the newly installed drivers are COM 5?
  • Did you unzip the Xloader file first, or did you try to run the program from the zip file itself?

I work on the “XLOADER” program, it does not require specifying the Protocol, and I followed all the steps mentioned on YouTube.