BIGTREETECH TFT35 Firmware Update - Complete Guide

[@3DPrintscape]

I hope you found this overview helpful! If you have any questions or would like other tips/tricks, just let me know in the comments.

[@Trevs-Shed]

Many thanks, very helpful indeed. I nearly had a cow when the BL Touch error came up :-) All sorted now with new TFT 35 firmware and SKR Mini E3 V2 BL Touch firmware. Just fitted dual Z drives and Swisstech direct drive on my 3 Pro.

[@3DPrintscape]

Hi. Thanks for the feedback. How are you liking the printer with the mods?

[@mikecrabb2165]

These are all great, you helped a total noob like me install updated firmware and BL Touch support successfully on the first try!

[@3DPrintscape]

Hi. Thanks for the feedback and im glad to hear my video helped :).

[@nigelbrown5516]

Hi Rob I upgraded my TFT35 using a 32Gig SD card and it worked. Thank you for the great video

[@3DPrintscape]

Hi. Is the tft the v3 one? They may have improved the reader in it. Thanks for sharing.

[@treyduval5399]

Same here…I did a full format which took forever, but the bin file changed to cur file, when I flashed motherboard, so it worked!

[@fdjohnson1961]

Hi Rob, Thanks for the great video on the TFT35 Firmware Update. Your video definitely filled a gap in my skill set working with BigTreeTech products.

[@3DPrintscape]

You're Welcome

[@michaelpotter7107]

lol I'm not saying I'm slow but i had to smile when you said usually takes about 15 minutes after following this video it took only a little longer but that was after 3 days of trying. so a big thank you.

[@3DPrintscape]

LOL, You're Welcome

[@pierre3036]

WOW! Am I glad I watched this because it solved a HUGE problem for me and I MUST mention this. I'm sure others already know this. I'm just learning Marlin and upgraded my printer (CR10 S4 400mm x 400mm)with an SKR 11.4 Turbo, TMC2209 and BTT TFT35. Long story short, config'd Marlin with bed dimensions etc. While checking thing out I noticed that when I did 4 corner bed leveling in Marlin mode the nozzle moved to the FL?FR/RR/RL just fine. In touchscreen mode it moved to FF as it should but would stop at 210mm when sent to FR? Anyway, during this video at the 11:00min mark you mention that we could open the config.ini file to make any changes.............WHAT!!!??? I checked it out and low & behold there's a listing for the bed size and IT WAS WRONG!! I corrected the dimensions and now 4 corner bed leveling works as it should in both TFT modes. Just thought I'd mention that. Thanks so much for that brief mention about the .ini file.

[@3DPrintscape]

Hi. Thanks for the feedback and sharing. Hopefully this will help others as well :).

[@BurkeStanion]

Thank you for this video. It was very helpful. I was so confused and thought I needed to further update my Marlin build for the SKR mini and it might mess up all that I had already done there. 6:35 you mention SD Card size. I used my 64 G SD card with zero issues. I just formatted it to Fat 32 first. I just did this today 12/30/2021. My build: Ender 3 Pro, BTT SKR mini E3 v2.0, CR-Touch, BTT TFT35 E3 v3.0. I did have an error at the end of my install that said "Config: Update required". I had read BTT github directions (that have changed since this video) and thought I understood that I should use config.rrf.ini for my application. The BIGTREE_TFT35_V3.0_E3.27.x.bin and the TFT35 folder both showed .CUR now. So, I put the SD card back into my computer and added the config.ini. to try and solve the problem. When I put the SD card in the printer this second time, the screen said "Illegal FLASH APP!" Google search took me to a Reddit that said they thought they bricked the TFT. I erased and reformatted my SD card again and put fresh files on again, this time the plain config.ini and it went perfectly.

[@3DPrintscape]

Hi. Thanks for the info, i will take a look at the changed they made and may make a new video or add notes to the description. I have had larger SD cards work, but they have been hit or miss, especially when dealing with the printer mainboards. The SD readers they use in these things are cheap.

[@Patty-qy8qh]

Worked like a charm, thanks a lot!

[@3DPrintscape]

You’re Welcome

[@JustinRuscheinski]

Thank u brother for the help i just watched this video and got my tft35 working perfect :)

[@3DPrintscape]

Glad it helped

[@haqeeqee]

Hi. Did you ever get around to testing if this works with an sd card larger than 8 Gigs? Unfortunately, (or fortunately I guess) the smallest sd cards you can buy nowadays are 16 gigs.

[@3DPrintscape]

Hi. I have had some 16gb cards work, but they need to be formatted as FAT32.

[@haqeeqee]

@@3DPrintscape OK I'll give that a try. Thank you.

[@zk_6312]

Worked great. I went for the new rounded theme. Looks cool.

[@3DPrintscape]

Great to hear!

[@michaelgrimm6926]

Thank you for this. Obviously there is a new firmware available, but I was able to follow your instructions perfectly and disable the auto bed leveling error message as I do not have any auto levelers. Currently printing a Calibration Dragon to see if things are good.

[@3DPrintscape]

You're welcome!

[@MrDjrmx]

hi in 3:00 you have on screen temperatures and on 13:24 dont how to turn that on ?

[@3DPrintscape]

Hi. What do you have on your home screen and you can get the firmware version by going into settings then choosing info.

[@MrDjrmx]

@@3DPrintscape already got it but thanx

[@3DPrintscape]

@@MrDjrmx Ok cool, I was a bit behind on comments. I was on vacation for a bit.

[@MrDjrmx]

@@3DPrintscape all ok :D enjoy

[@Moyersteven1]

Great videos, Man! Question. How are you liking the SKR board and the touch screen? I was thinking of getting the TFT50 and SKR E3 V2 for my Ender 3 V2 that has a BLTouch. Installed. Also I like your fan shroud. What one is it? Great videos. Liked and Subbed!

[@3DPrintscape]

Hi. Thanks for the feedback and sub. I really like my TFT35, it works well and is much better than the stock console. Here is a link to a video i made covering that fan duct install. kzbin.info/www/bejne/iaLLdqCtbMaHea8

[@shanerogers5469]

Hello I love your videos and info. I have an issue with my ender 3 pro that says "wait for the hotend temperature to get lower than 50c" message pop up on my butt tft35. I've replaced my entire hotend assembly. Still no go . I'm brand new to this hobby so I don't know much .

[@3DPrintscape]

Hi. Did the thermistor get replaced as well? It could be something wrong with that.

[@dangardner9829]

Hi Rob, first off i must say youevideos are sport on so thanks. having just compiled firmware for my ender 3 max whilst watching your guides i have a problem where as my btt tft only works in marlin mode. it worked on my old firmware tho. is there a step in the firmware that i have missed to eneable the btt tft?

[@3DPrintscape]

Hi. Thanks for the feedback. I dont recall anything specific needing to be changed when doing it with the e3pro but its possible the max config example is different. Make sure the creality screen is not enabled.

[@pablo123b]

excellent new sub added and all the best to you across the pond from here in the UK stay safe

[@3DPrintscape]

Awesome thank you!

[@ValerioCampaniniNovecento]

Hi! my SD reader is completely broken, can I use the microSD of the motherboard? thanks a lot and great video, help me a lot!!! Valerio.

[@3DPrintscape]

Hi. You can use the sd port on the mainboard for printing. You wont be able to use that to update the firmware on the tft though.

[@DigitalBeastie]

Arrgh - updated this board mutliple times in the past but now all I get is a whitescreen. Screen makes a beep when touched but no other info is ever displayed....

[@3DPrintscape]

Hi. Sounds like there may be an issue with the firmware. Did you build it or get it from somewhere?

[@alanfoss390]

Hi great video. I have an issue where I still have a 'Printer not attached' message on screen. Change Baudrate settings but to avail. I also have no System info on screen like in your video.

[@3DPrintscape]

Hi. Can you confirm that you have both cables from the TFT attached to the mainboard and that they are plugged in correctly? If the no printer attached error isn’t going away, that’s where I would look first.

[@alanfoss390]

@@3DPrintscape Grey ribbon cable plugged into Exp 1 (Screen) to Board and 4+1 cable plugged into RS232 (Screen) and TFT on board with +1 connected to RST

[@3DPrintscape]

@@alanfoss390 Hi, im not home right now so i cant check but im pretty sure the ribbon cable needs connected to EXP3.

[@alanfoss390]

@@3DPrintscape will try but I feel the outcome will still be the same........still the same :-(

[@3DPrintscape]

@@alanfoss390 :(. Ok, can you email me a copy of your configuration.h file? My email is [e-mail] .

[@uhhhhhhwhar]

Thank you this fixed all my problems, I thought the files were just broken😅

[@3DPrintscape]

You're Welcome

[@CarbonGlassMan]

I just installed the TFT 35 v3 touch screen and it worked right away, BUT it will not print. It says card read error. I go to Marlin mode and it reads the card and prints. Do you think this is a bug in the firmware and it needs an upgrade? My mainboard is the BIGTREETECH SKR Mini E3 V2.0.

[@3DPrintscape]

Hi. It could be, i dont use the SD card on the TFT. Can you try it with a usb drive to see if it does the same thing?

[@CarbonGlassMan]

@@3DPrintscape Thanks. I figured out my problem. If I am in Marlin mode, the original micro SD card slot is used. If I am in the touch screen mode, there is a full sized SD card slot on the right side of the Touch screen board. I plugged the SD card into that and it works fine.

[@3DPrintscape]

@@CarbonGlassMan Thanks for the info

[@dylanonderko9054]

I have the skr mini and board firmware installed and updated. But when I try to do the initial ABL level it fails. Says "! ! STOP called because of BLTouch error - restart with M999. Any guidance?

[@3DPrintscape]

Hi. I would make sure the black/white wires are in the right order and that the wiring matches the firmware.

[@mrpbjnance]

Where can I control hotend fan? Now that its off how is it on for a print?

[@3DPrintscape]

Hi. The hotend fan should be on by default. What firmware are you using?

[@imc5727]

Thanks for video I am sure I will be watching this video again because every time I update screen firmware i can't remember which files I need

[@3DPrintscape]

You're Welcome!

[@whoislupu]

Hello! When printing from tft USB port, the printer randomly stops and screen freezes. Any advice?

[@3DPrintscape]

Hi. I would try updating the firmware on the tft and the printer.

[@whoislupu]

@@3DPrintscape Already did that. I set the baudrate to 57600, bufsize to 64 and BLOCK_BUFFER_SIZE to 16 (was 8 before). Printer is still running for an hour and it seems to work.. it should have stopped already but i will wait and see if that fixed it

[@3DPrintscape]

@@whoislupu Did that end up fixing it?

[@whoislupu]

@@3DPrintscape it worked for 2 days. Last night it stopped after 40-50 minutes bur after that i got a succesfull 7 hours print overnight

[@3DPrintscape]

@@whoislupu Im wondering if there is a hardware, or power, issue.

[@grahamgrobler776]

Hi. How do I stop the flashing from happening every time the printer starts up?

[@3DPrintscape]

Hi. Im not sure i understand the question. But once the firmware is pushed to the printer make sure you save your settings and everything should persist through printer reboots.

[@grahamgrobler776]

@@3DPrintscape If the printer boots up with the SD card in it, it causes an "Illegal FLASH APP!" error to appear even though the only files on the SD is the gcode file that needs to be printed. Then i have to reflash the firmware on to the board before I can use it again.

[@3DPrintscape]

@@grahamgrobler776 I have not seen that before. Make sure the sd card only has the firmware file on it when you flash the printer and that its deleted afterward.

[@JosephGilbertson-l2n]

can I download it onto a USB stick and use that for the update? Or do I have to use an SD card to transfer the update? I've got a printer running on old tech and it thinks that the board is 9in but it's a 12 in so hopefully the new update fixes that.

[@3DPrintscape]

Hi. I think it has to be on the SD card.

[@JosephGilbertson-l2n]

@@3DPrintscape great thanks so much!

[@jerseybarrier64]

So have this screen installed for quiet awhile and continue to get an error message “Illegal Flash APP!” This happens every time I turn the printer on with the SD Card left in the screen slot. Any idea what might be going on? Only way to fix I have to reload firmware or make sure I pull card from slot before starting. Pretty frustrating.

[@3DPrintscape]

Hi. I havent seen this but i can try to help you troubleshoot. I assume that if you dont leave the sd card in you dont have the issue? I typically print from the USB port and i know that can be left in when its being powered on.

[@jerseybarrier64]

@@3DPrintscape Yes that's correct and thank you. Only happens when I leave in the screen SD slot. Never tried using the USB port or the standard micro slot on my ender. Using latest TFT file now but its been a constant problem through different firmware iterations. If I'm daring I guess I could try leaving things in the other slots to see impact. Just odd that it completely wipes out things.

[@3DPrintscape]

@@jerseybarrier64 Is there anything on that sd card besides gcoode files?

[@jerseybarrier64]

@@3DPrintscape I have used different ones and not 100% sure but I'm sure g-codes only most of the time.

[@romanletnansky7582]

Hello, did you happen that BIGTREETECH TFT50 V3.0 does not load a 16GB flash drive, FAT32 format? I have no idea what to do with it, so I ask everyone who works with the display. The display firmware is the last. Thank you.

[@3DPrintscape]

Hi. The largest card supported by the tft35 is 8GB. I have seen 16gb ones work some times, but they are not supported.

[@martenbuter9174]

Have an Ender 3 V2 with a BigTreeTech SKR mini E3 V3.0 motherboard. and a BigTreeTech_TFT35_E3_V3.0 screen. Now get the message “Failed to enable Bed Leveling” Can someone help me to get rid of the message?

[@3DPrintscape]

Hi. Thats expected after pushing new firmware to it. Once you run the mesh once and save it, the message should go away.

[@abtrooper82]

Followed your guides, works great thanks. Any advice on how I could display the print job status on the TFT screen when in touch screen mode

[@3DPrintscape]

Hi. It shows me the percent complete by default. Did you try to update the firmware on the TFT?

[@abtrooper82]

@@3DPrintscape Yes I did from the Bigtreetech GITHub site, from here github.com/bigtreetech/BIGTREETECH-TouchScreenFirmware

[@3DPrintscape]

@@abtrooper82 ok cool, can you send me a picture of the screen during a print? My email is [e-mail] or you can join my discord server discord.gg/Bu94EYVkrU .

[@abtrooper82]

@@3DPrintscape Will do.

[@djtriggerfinger]

Yep, it's very straight forward to upgrade it. Now hopefully they can fix the filament runout to work through the TFT and vise versa from the mainboard. But to be fair since I print 99% of the time from my pi and OctoPrint. I just have the runout sensor connected to the Pi so OctoPrint can see it and pause if there is a runout detected. I can confirm that larger cards than 8GB are fine when flashing the firmware. Fun customization tip I learned from Teaching Tech you can set a custom boot logo on the TFT by simply going into the TGT35 folder and replacing the Logo.bmp file with another picture. I do believe you can you anything you want as long as you scale it to the same size as the original Logo.bmp file.

[@3DPrintscape]

Hi. Thanks for the feedback. It sounds like some cards over 8GB work, and some don’t. What runout sensor are you using and would you be interested in me doing a video on the setup or are you fine with it just being connected to OctoPrint? You would actually be able to swap out all the images if you wanted to. They just need to be the same size, in the same location in the TFT35 folder, and have the same name.

[@djtriggerfinger]

@@3DPrintscape I am using a sunhokey filament runout sensor. They are 3 pin just a basic one I got for cheap on Amazon that had good reviews and was cheap. I think doing a video would be good. It is pretty easy to do and not printer specific so I’m sure the more source out there with guides the better.

[@3DPrintscape]

Ok, I will add it to my backlog.

[@neilwoodman61]

hi i have the skr mini e3 v2 and the tft35 e3 v3 but for the filament load unload and park head features to work you have to specify the screen in marlin...when i specify the REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER as per the documentation i cant build the firmware as it says #error "Only CR10_STOCKDISPLAY, ZONESTAR_LCD, ENDER2_STOCKDISPLAY, MKS_MINI_12864, and TFTGLCD_PANEL_(SPI|I2C) are currently supported on the BIGTREE_SKR_MINI_E3." How do i specify the tft35 e3 v3 in the firmware...i need this so i can make the filament runout park the head on pause. any help is useful thank-you

[@3DPrintscape]

It sounds like you may not have the right board defined in the firmware. Can you email me a copy of your configuration.h file for me to review? My email is [e-mail] .

[@johnjahner3389]

I installed a TFT 35 it worked initially but now I get a configuration required message then the screen goes blank need help

[@3DPrintscape]

Hi. Did it randomly start having the issue or was it after a change?

[@johnjahner3389]

@@3DPrintscape after changing the screen it worked for a couple days

[@3DPrintscape]

@@johnjahner3389 I would try to update the firmware as I talk about in this video. If that doesn't do it I would try to exchange the TFT. If it was working then just randomly stopped, it sounds like it may be a hardware issue.

[@johnjahner3389]

@@3DPrintscape after then change

[@johnjahner3389]

@@3DPrintscape ok

[@mattstout610]

I followed all these steps and got my TFT35 updated but when I set the bed level it gives two errors. Error writing to the EEPROM and EEPROM data size error. Any suggestions?

[@3DPrintscape]

Hi. I would make sure the firmware on the SKR Mini is also up to date.

[@mattstout610]

@@3DPrintscape Thanks for the reply. I actually just compiled and updated the firmware following step by step with your other video. That was right before I did this TFT35 update. Thanks for the great videos. I have been saving them to a playlist for later reference too.

[@3DPrintscape]

@@mattstout610 Dic you clear the eeprom after the firmware update?

[@mattstout610]

@@3DPrintscape No, that must have been it. It works now. Saved my settings!

[@3DPrintscape]

@@mattstout610 Cool, glad its working now.

[@Bluedogadventures24]

Hi, thank you for the videos. I have a TFT-35-E3 V3.0 and when I am upgrading to the newest firmware (Bigtree_tft35_V3.0_e3.27.x.bin) with the "Round Miracle Menu" theme it tells me that it can't find 3 images. (Bigtreetech, U_disk, Marlin) After flashing It says Fonts is ok, config is ok, Icons needs updated. I'm fairly certain that the config file and the tft folder are all flashed because the file names have .cur after. The .bin file stays the same. Is the .bin file my issue on why It says that I'm missing 3 .bmp files? I am using a 8gb mini sd card with adapter. Suggestions on how to fix this?

[@Bluedogadventures24]

Wrong Firmware bin file!!! I have it working now.

[@3DPrintscape]

Hi. Im glad you were able to get it going.

[@GoodVibesOnly207]

Very helpful.. Done in a couple of minutes.. However, I lost my bl touch button after doing the firmware update from bigtree github.. Any suggestions on how to get it back?

[@3DPrintscape]

Hi. Can you confirm that you only updated the TFT35 firmware and that the BLTouch was working prior to that? Also, can you look under menu  Movement  ABL to see if the BLTouch shows up there?

[@samhintz8479]

what is the newest version of the firmware as of right now?

[@3DPrintscape]

Hi. If you grab from the repo, it will have a build date of today. The last actual release shows 18 days ago.

[@nigelbrown5516]

when I upload to my Ender 3 Pro it shows no printer attached

[@3DPrintscape]

Hi. My best guess is the the BAUDRATE changed in the firmware. You can change it on the TFT35 through the interface or in the SKR firmware. If you run into issues, you can also reach out over email or discord. My email is [e-mail] and discord is discord.gg/Bu94EYVkrU .

[@PHXazHEAT]

Thank you! Also, i used a 32gb sd card. It worked for updating

[@3DPrintscape]

You're welcome, and good to know. Technically it only supports up to a 8gb card but i know some people have had luck with larger ones, im guessing its related to the chip type of something.

[@neodymium2007]

I give up, I've tried everything and it doesn't work and there's no help on the internet anywhere I read everything from the video and all the articles, but there is no solution I have TFT50 V3.0 (V27 softwave) everything works fine and is connected to btt skr 1.2 pro (no software inside yet) but as soon as I insert the config.ini into the TFT50, it updates and turns on, then beeps continuously for a few seconds and restarts in 30 seconds, and so on and on without interruption until I turn it off Can anyone help, I really don't know if I'm doing something wrong

[@3DPrintscape]

Hi. I have not had this issues, but i only have the tft35. Maybe someone else on here may be able to help, or you can ask on the discord server.

[@neodymium2007]

@@3DPrintscape It is the sam screen i dont know what to do any more. Here is that discord server, i didnt useing discord usually

[@3DPrintscape]

@@neodymium2007 What size sd card are you using?

[@BlackSpectre512]

Anything above 32gb wont work. FAT32 is the limitation of which it reads. I tried to use a 128gb and it won't detect it.

[@3DPrintscape]

Hi. Thanks for the info. I have had mixed results with 32 gb sticks, even formatted as FAT32.

[@BlackSpectre512]

@@3DPrintscape Well the format which the printer reads can only be in FAT32, that specific format can only be up to 32gbs. With that said, the printer may only support up to 8gb itself as its own limitation regardless of the Format's limitation. I'll make a shot at it soon. I'll drop back by and let you know what I find out. If the printer does indeed have an 8Gb limit, I'll look into potentially making it cap with the format type.

[@WC1376C22]

Man...I did this ( before watching your vid) like 8 times with a 8gb card. Switched over to a 128mb and BAAAM! It uploaded. TY still no printer attached.

[@3DPrintscape]

Hi. So it didn’t work with the 8GB card for you? I was thinking about this more, and its possible the 8GB cards actually have more than 8GB (basically a buffer to account for blocks going bad), hard to say for sure. Are you getting any indications/errors on why its showing the printer not attached?

[@WC1376C22]

@@3DPrintscape in rufus ( I used multi formatters to sanity check myself) it said 7.46gb. I am wrapping up now to calibrate...it looks like I have to reflash the MB, it seems to have turned off Mesh_BL. Thanks for the vid though. PS I have to go to 12864 first in order to get it to connect to touch

[@erwinvigilia6303]

I believe you also need to make sure the 8g card (or smaller) is formatted using a 4k cluster size

[@3DPrintscape]

@@erwinvigilia6303 Hi, thanks for the info. I think the default value for the cluster size is 4k, but I'm not sure if that's a hard requirement or not.

[@ppilotx]

thanks!!!

[@3DPrintscape]

You're welcome!

[@rayrclark]

Definitely does not update with a card larger than 8gb. Nice vid.

[@3DPrintscape]

Hi. Thanks for verifying that. I assumed that would end up being the case but couldn’t test it with the cards I have.

[@Duckhunter285]

I keep having the touch mode or marlin mode pop up on my TFT 35 v3 e3. Any insight in what I need to do to get past this? I plugged the one wire connector in to the exp3. I did not have any other wires missing to plug from my original motherboard. Any help will be greatly appreciated

[@3DPrintscape]

Hi. Are you able to go into both of them without issues? Also, did you upgrade the firmware on the tft?

[@Duckhunter285]

@@3DPrintscape I did the upgrade and it’s still showing up.

[@Duckhunter285]

@@3DPrintscape once I click one or the other it shows the main symbols. It goes back to showing both again