After struggling with firmware updating with my Ender 3 V3 SE, watched KZfaq videos and posts that didn't help, I solved it with try and errors. So here is an updated help file written by me in a clear and easy English. Hope it will help for many beginners to update the firmware of the mainboard and LCD. As a new Ender printer user, I even didn't know that the LCD screen have it's own SD card, and the new model is different from all KZfaq video I watched. there is no screws to open it, and you will break the plastic if you try. but no need to open, because the SD card slot is just there on the left side. For updating the mainboard firmware, I copied the bin file to an SD card, but than the LCD screen turn black, and that's where my journey began. At the end it solved, and if you follow this help file I guess you will crack it also. good luck !! ------------------------------------------------------------------------------- Printer: Ender-3 V3 SE Printer Mainboard: HWCR4NS200320C13 Notes: The firmware is Ender-3V3 SE Factory standard version Support eleven languages。 this update include LCD firmware files, witch is mandatory to update in most cases of updating the mainboard. Firmware update content: 1. Add Korean language. 2. When optimizing and editing the levelling data, the nozzle follows the coordinate changes in real time. 3. Added CR_Touch exception interface handling during printing process. 4. Fixed the bug in the automatic feeding function.------Known issues 5. The boot guide interface adds automatic height alignment and automatic levelling operations and CR Touch exception handling content. Display (LCD) firmware update： 1. Format the TF card on the computer side, and select 4096 for the allocation unit size (max 16GB card allowed or belter max 8GB sd card size). 2. Copy the screen firmware folder "TJC_SET" into the TF card (Copy to main folder). 3. Turn off the printer (important) 4. Insert the TF card into the card slot on the left side of the LCD screen (not to the SD card of the printer - take of the LCD and see a small slot on the left). 5. Turn on the printer and wait for the update to finish. (you will see on the screen percentage count 1-100%). 6. If update succeed, you will see a message "update succeed".) 7. After update done, turn off the printer. 8. Remove the TF card and delete the files in your pc. Errors with LCD firmware updates: 1. If the screen say that the card in not formatted to FAT32, reformat it and make sure you choose FAT32 in the format dropdown menu. 2. If you cannot avoid errors with SD card reason, change to max 8GB SD card and format again (at some cases a large sd cards do not accepted by the LCD or/and the printer). Mainboard firmware update: 1. Format the SD card on the computer side, and select 4096 for the allocation unit size. 2. Put the firmware file "Ender-3 V3 SE_HWCR4NS200320C13_SWV1.0.6_GD303.bin" into the root directory of SD card (make sure there is no other files or folders in the SD card). 3. Turn off the printer 4. Insert the SD card into the card slot on the left side of the printer body (where the mainboard is). 5. Turn on the printer and wait for the update to finish. 6. After finishing the update, remove the SD card from the printer slot and delete the bin file in it. Errors with Mainboard firmware updates: 1. If after update the board firmware you get a black LCD screen or screen with chines letters but no menu, it means you need to update your LCD screen firmware 2. If the update progress do not start or get some issues, some users suggested changing the bin file name to "firmware.bin" and try again.

Just wanted to say that this video saved my printer from being an expensive paper weight. Thank you!

You just single-handedly helped me fix an ender 3 pro that I found in the recycling centre. Thanks! 😁👍🏻

thanks!!!

I own the Mars 4 Ultra. It turned out that the screen cable wasn't fully plugged in; It had been tapped to stay in place, lol. Fortunately, fixing the cable in the correct position and closing the clips resolved my issue. Thanks for the help!

Was a Christmas Present for my 10 y/o daughter... she asked Santa for this one and he said sure thing! So, got all the way to this and BAM. Black screen but the fan on the extruder box dealio was running. Tried everything but firmware as when I took the power inverter box apart and checked those connections, THAT was where my problem was. Thanks for the video. I checked everything based on your vid! Cheers dude!

Thanks a lot!

thanks man your video is very helpfull..thanks a lot..

Muito bom!!! Brazil!!!

It was firmware for me. My Ender 3 Pro is over 3 years old and the firmware resides on the SD card that the print file is on, not sure if later Ender 3s are the same. Fortunately, every time I make a change to the firmware (BL Touch, etc) I keep a copy on my desktop as a ,"Just in Case". Forgot about that until watching this video. Thank you, Liked and Subscribed.

Thank you the new firmware fixed it! It was in chinese after, but I found another video to fix that too

Hi, hope you can give me some help. I have an ender 3 v2 printer, the problem is that I updated the firmware on it and now the lcd is beeping with black screen, i have narrowed it down to the lcd because i changed the lcd with a spare one i had and that is working, any ideas on how to fix it would be great, TIA.

Hola! tal vez puedas ayudarme, tengo una CR-M4, no hace el autonivelamiento ni imprime y se queda en la pantalla de carga, ayuda!

Changed motherboard on ender 3 neo, screen blank. How can I flash the firmware if the screen is powered on but is just blank blue screen?

Awesome video. Thank you! Firmware update fixed my Ender 3 Pro. Funny thing is that my firmware was so old from 2021 and the new one is very different. It has filament change which I used to do manually. And my printer is noticeably quieter. The menus have changed a bit but it's working great now.

hi, I have an ender 3 but I don't understand what file I have to put in it. I have the same card you show in the video

I just got an ender 3 v3 ke today and the screen is unresponsive does it need a firmware update or do I need to return it?

Please assist l recently bought and assembled a creality ender 3v2. I hadn't leveled it and wanted see how it displayed. It turned on but it started releasing smoke and so l turned it off. Please help . I am in Zimbabwe.

Nice troubleshooting

Thank you. Mine just stopped working on its own. I flashed the firmware and it started working.. It was not the cables since I had not moved the printer at all. At 2:52 you mention 3 screws it's actually 4 screws the 4th one is at the top. Just in case someone else is frustrated like myself for 30 minutes haha.

I installed a TFT 480x320 screen with Marlin 2.0.9.5 and everything is fine except for the fact that the result of touching menus are inverted, if I touch + it acts like - , if I touch the fan icon on the scrren brings me the menu for extruder and viceversa. If I touch the Tools icon it shows the SD card files and if i touch SD card icon it shows the configuration menus. Can it be fixed?

My problem too in my ender 3 LCD, dan in main board dead to how to fix

hi, i have bought a used Ender v2 and printed i test, it worked well until the blue screen happened. i tried new firmware and everything in this video, its still not working.

I put the firmware on the sd card but if I put for example home all it says an error

I was stuck on Blue Creality screen. I took back off to confrim verision and downloaded firmware. I inserted in Ender and now there is a beep coming from screen. It stops when unplug ribbion HELP

Ender 5. Juat got it off a dude from Facebook worked great for a few months, blue screen, followed instructions. The engraving doesnt help i still dont know which one to download

why would you not put links in the description? not a lot of help without those as the same google drive link you used seems impossible to find.......

I did all this and my printer will print the test strip and then before it even finished the first layer it freezes and I have to restart the printer

My printer shows a maxtemp error for the bed even though the bed is cold

Please advise asap

Thx you k1 3d printer screen just turn on

i have an issue, just like in this video, i'm gonna try it, cause this problem gonna make me sick and can't make me sleep in a right time

what genius thought it would be a good idea to pour hot glue all over the circuit board?!

Sorry It should say GigoDevice

If This doesn't help, I'm Putting the 3D Printer in A Field and Shooting 300BO At It Until Nothing Is Standing!!! I'll give THIS Video A Try.... Hope it Works, I Have HAD IT With this STUPID CHINESE BS PRINTER