Firmware Mishap



  • their is new firmware for the 4.2.7 that was released 14th November 2020 2 variants download the one that says no adapter card





  • Similar question, except for 4.2.7 board, on a Ender 3 PRO, NO BLtouch. It worked for a short time, then wouldn't boot up, so I tried flashing several different firmware flavors. I tried the only listing for 4.2.7, but that caused the beeper to go off, which I'm guessing is due to the BL touch feature, which I do not have.

    Based on the information above, my best guess was "Ender-3 Pro_32bit_Marlin2.0.1-V1.0.1_TMC2208_Latest Firmware_0814.rar". However, when I attempt a home or moving an access, I get NO motor movement. I know the connections are solid because I did a couple test prints before it wouldn't boot.

    So! @admin what is the correct firmware for 4.2.7 mainboard on an ender 3 pro, with NO BLtouch?



  • @Eldrod Hi, glad to see you are successfully working on it, and I make this post to be Pin post, that will help other people who have the same questions.



  • @SlackHacky said in Firmware Mishap:

    download it and rename to fixitfirmware.bin - put on a fat 32 formatted sdcard less than 8gb in size - if this fails to flash - try making 2gb size partition and format fat32 and firmware must be in root and not in a folder. Power off card in re power and wait.

    This really must be the criteria for this to work.



  • @SlackHacky That did it! I had tried that version of the firmware before, but I was using a 64GB SD card formatted exFAT. I copied the bin file to the original 8GB SD card and the firmware reloaded. Thanks for the help!



  • @Eldrod first off open bottom cover and find what board you have.... the number will be on it, they could be v1.1.5, v4.2.2 or v4.2.7 all fit the space.
    ALL require a different firmwares yes even v4.2.2 vs v4.2.7- Don't wildly flash wrong firmwares....

    firmware for v1.1.5 is a .hex file and is flashed by cable
    firmware for v.4.2.2 and v4.2.7 is flashed from Sdcard and will be a .bin file

    if you dont have a BLTouch don't flash the BLtouch firmware.

    for v.4.2.2 ender 3 pro no blT you need Ender-3 Pro_32bit_Marlin2.0.1-V1.0.1_TMC2208_Latest Firmware_0814.rar

    download it and rename to fixitfirmware.bin - put on a fat 32 formatted sdcard less than 8gb in size - if this fails to flash - try making 2gb size partition and format fat32 and firmware must be in root and not in a folder. Power off card in re power and wait.



  • This post is deleted!


  • Thanks, @timd1971 . No, I'm not the same person on Reddit. I have tried copying the other bin versions to the SD card, and have tried renaming the files several times from minor changes to gibberish, but once my EP3 upgraded to the Marlin 1.1.2, it will not recognize any other bin files when I reboot. It just comes up with the Ender logo screen. I've tried this about a dozen times.
    I did try to print one of the stock files from the initial SD card and the extruder moves to the XY position (lower left) then raises the Z and moves to position X162, Y117, Z10/??. Auto home does same thing. Once the extruder heats up, I get a "Home Z First" message and nothing else seems to clear it.
    I just ordered a BL Touch so I'm hoping having that will make the printer function, but it is strange that I can't reflash any other firmware now. (I did compile the basic Marlin 2.0.6 for this v4.2.2 board and could not get it to flash via the SD card either).



  • @Eldrod

    Ok, I think your the same person with this problem on reddit.com?

    Since u do not have the BLTouch yet, stick with the NON-BLTouch firmware for now.

    After you download it, uncompress the files. The .bin file u need to be concerned with.

    Rename the .bin file to something different. I.e. firmware01.bin

    Put on MicroSD card. Turn off printer, insert card, turn on ,wait for update which shouldn't take long... hope this helps.


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