Update your 3D printer firmware without a bootloader!

[@fail_fast]

This is actually super helpful. I've been trying to add features to Prusa's mk3 firmware but the memory is basically full from the factory. That extra 8kb for the bootloader will be really nice to have back.

[@TheCerealHobbyist]

Thomas - thank you so very much for everything you contribute to the COMMUNITY. It's folks like you who make it just that, a community.

[@ColBol7]

At 8:09 you select the wrong option. Arduino as ISP is lower down in the menu. This might confuse some people.

[@ItalianDude000]

lol i think this is why i'm having issues, i'll test this option

[@Side85Winder]

This is fantastic so many users on the A8 Facebook group have been having problems with their bootloader i keep telling them use a Arduino ICSP and program it across but there hasn't been the best videos around explaining everything thanks Thomas for stepping up and being very tougher. I tend to recommend a mega 2560 there about $11 because most convert to ramps later or you can also use the mega for other projects later like a environment controlled enclosure.

[@patrickmaartense7772]

just did my CR10 Mini , no sweat . mine had the newer board ( EDIT: Still Sanguino ) but no bootloader installed. Also flashed the wanhao Mini ( 2x ) last week all the safety features are enabled now. Only waiting for the new fancovers to be printed out so I can replace those pesky fans. make even more noise than my 10GB Netgear switch. fans arrived yesterday so I have some work to be done (noctua ) for anyone else wanting to flash the newer cr10: use the connection with reset to pin 10 and still power both burn the loader and you are good to go with any decent firmware

[@BryanBakerXBrav]

For the 2560, you can get a healthy amount of code with the bootloader enabled, though these memory concerns won't be much of an issue once the 32 bit boards are mainstream. Still, Marlin 2.0.x runs great on the CR-10. For the 1284 boards in the Ender 3 though, PROGMEM space does limit many options. I usually end up turning off most of the graphics for those machines. Good video Tom!

[@snappermancation]

just a warning if you use the DK Usb tinyISP and just try to flash the firmware as shown it will fail due to the 64k limit the correct way to recover from this is just flash the boot loader it will fail to verify then upload via usb

[@joaquingarcia7622]

Thanks for the detailed instructions. Just got an Ender 3 and couldn't get the bootloader to load on the mainboard. A step that most videos missed were that you need to upload the ArduinoISP first to initialize the Arduino with the bootloader. After spending 2 hours researching.. it was fixed in 5 minutes. Now bootloader is flashed. Thanks.

[@RealCousinOkri]

Kind of a nice feeling when after countless nights reading tutorials and datasheets I know what this video is going to show before watching it.

[@workinghard111]

Please consider linking the official Arduino hardware as-well. It doesn't hurt supporting the original/official developers.

[@gotmilk1245678910]

Makes sense, but they're more expensive than the functionally identical off brand boards

[@hjartland]

Stop! Only 1/2 way through the video. You have explained things soooo much better than anyone else. OK. Now to finish the video. TY in advance!

[@BikerNic]

Thank you for the info. After listening to various other 3d gurus who's advice does not work on the creality cr10 s5, This is the answer.

[@samueldummler7307]

I have an S5 where the BL Touch flash bricked my printer to a blue screen. I am about to buy an ISP flasher so hopefully it works.

[@bilalakyuz9866]

@@samueldummler7307 Hi. I have the exact same problem with my CR10s S5. While flashing the firmware i accidentaly unplugged the usb cable amd noe im stuck with a blue screen. Did you solve it and can lend me to the right direction?

[@bilalakyuz9866]

I solved by burning a bootloader again

[@l3d-3dmaker58]

that "hello" made my day 🤣

[@NexiTech]

Great video Tom! Keep the great work.

[@agoffgrid640]

I now have the confidence to investigate the next step: figuring out what firmware to put on my cr10 clone

[@RemainIndoors]

nice explanation sir

[@KennethScharf]

The adafruit USBtinyISP will not work on atmegas with more than 64kb of flash. If you try to program a 128k or 256k device it will look like it worked, but it doesn't write to any memory above 64k. I don't know if the Chinese versions have this problem. I have the Adafruit programmer, and I use it for ATmega328's. I also have an Atmel ISP programmer (not made by them anymore :-( ) , that I use for larger chips and ATXmega's.

[@BrainSlugs83]

Huh... I suppose if you're just burning the boot loader that's okay, but still kind of a major bug. :(

[@Joshey13]

Wish I read this sooner...

[@tommyunreal]

Can you burn the bootloader and than flash Marlin directly to atmega from windows?

[@anthonyrich1592]

You need a USBtinyISP Version 2. Make sure you're buying a Version 2 board, or buy a USBasp ICSP programmer from Freetronics instead.

[@MadeWithLayers]

Anyone else bothered by that loose USB cable in the foreground?

[@hannesgroesslinger]

not until you pointed it out...

[@FCastle23]

Wireshark

[@davidniemi4051]

They are the bane of existence in today's world. They'll be knotted up everywhere in the household..

[@frobinson2413]

why is that? haha

[@BrainSlugs83]

Nope!

[@orangerc2358]

Lost me at 00:10, but I still enjoy watching your videos 🙃

[@ctsnctechnologychannel6342]

I have to agree, he talks at the speed of a processor chip and in a youtube video there are no time limits OR RESTRICTIONS

[@ianide2480]

Good point on who made what that allows you to get products cheap... I try to buy at least one "original" product from the manufacturer to support them directly. I did this for an ISP and got it for triple the cost, all well worth it in my opinion.

[@DennisGlowacki]

I've successfully done this on an ender 3 with the USBtinyISP. What I've learned is 1. The ribbon cable orientation should be the cable touching the wall of the case. 2. I had to cut off some plastic from both the usbtiny cable and the ender 3 screen input on the board to allow the cable to fit. 3. Load the bootloader and disconnect do not try and load the firmware through the tinyusbisp. Connect your laptop to the ender with usb to mini-b type cable (I found at goodwill for 99 cents) and change to com3 then load the firmware. And you're all set.

[@jonaugust69]

Which application did you apply the firmware? Hex?

[@LucasHartmann]

You may also use *Pi's GPIO with avrdude to do the programming. Mind the 3.3V to 5V shifting, though. If you already have octoprint running then it is basically free.

[@josedelfuego]

Tried this on my chinese 3d printer called ctc bizer dual it was given to me as a birth day gift, i gave up on it because the drivers and software were old it uses the slicer replicator G plus the marlin update was not working. So i broke it in pieces threw it in the trash and bought a proper 3d printer with better set instructions and now i am enjoying it.

[@wolfhound905]

Can you do the tutorial for the ender 3. Since it has a bootloader but not enough space for Marlin 1.1.9.

[@dsarnson]

I'm reading that the Ender 3 as a "budget" printer does NOT have a bootloader by default, thats why you need to add the bootloader before you can flash newer FW. cheers

[@wolfhound905]

@@dsarnson Lol, thanks for replying DSA44, but I have already figured it out and I had to purchase the Adafruit clone to upload the marlin. Can't wait for Marlin 2.0.

[@HenkFueltank]

I had success flashing a bootloader on the Ender 3 using a cheap nano clone. Note: the ICSP pins are orientated 180° different as opposed a Uno. I flashed the Arduino ICSP programmer to the nano. Then the bootloader to the Ender 3.

[@ZURAD]

This is EXACTLY what I needed! Thanks, Thomas!

[@DailyFrankPeter]

Best video on the subject I found so far! Thanks, Thomas! Particularly for some theory and background - I, myself, do not have a background in robotics/automation, and the very reason I tinker wtih my printer is to learn (otherwise I would just order prints!). But it's harder to learn when people just show recipes without context.

[@floridasaltlife]

It is informative but you move too fast for anyone who does not already know how to do these things and that makes it very difficult to get value from.

[@ctsnctechnologychannel6342]

I have to agree, he talks at the speed of a processor chip and in a youtube video there are no time limits.

[@OgbondSandvol]

This is not an ordinary operation. If you don't know how to flash a firmware without a bootloader, you should search other tutorials and information sources. This video should be considered as a final review before starting the real thing.

[@samdeir]

Pause rewind!

[@SouthJerseyFirearms]

Thank you so much for this video. I was trying to install a TH3D EZABL the boot loader that I was instructed to install did not work. I thought I bricked my Ender 3 until I found this work around. Thanks again!

[@InfernosReaper]

That Ender in the background taunts me. The bed is a bit off and still won't quite level right even after I upgraded the flimsy springs. Maybe I didn't get the vertical limiting switch just right. Who knows... I still managed to get it level enough to print a few upgrade parts, but it wasn't easy and kept having to be adjusted between sessions. To deal with that, I got an auto-level sensor for it, only to realize that I have to update the firmware, so it'll actually work. That's my fault for not thinking about that part of things. Then, I find out I can't just plug in a USB to the port and update the firmware, so I get an arduino kit. Now, before I can begin, I find this video showing me a cheaper alternative, one I could probably just probably integrate into the printer. This thing has really been an interesting experience...

[@JATMN]

Great explanation. Was actually not sure if you could force flash a bootloader or not thought it required an additional chip on the board, good to know its just a missing "software" package that can be pushed to a board without one. Keep them coming ^_^

[@jim.c6780]

Thank you very much Tom great video very helpful by the way I love watching your videos very helpful. but for those of us that are complete newbies to 3d printing world would be awesome if you could take it little bite slower to explain in more detail on some of the stuff like IDE video you did kinda was to fast. but your videos are great thank you so very much for your help in 3d printing Community.

[@fredgreer7458]

I have had little success with a couple of boards..with this I might be able to resurrect them as spares. Thanks Tom :)

[@MiGujack3]

FYI you may not necessarily bricked your board if you can't see your printer in Cura try Arduino IDE efirom clear and the flash with XLoader.

[@FilamentFriday]

Great explanation. I’ve found on the CR-10, loading the bootloader with an ISP programmer caused timing issues, it was too fast. Could be related to added circuitry on the ISP pins if the CR-10 board, don’t know. . But using the Arduino as ISP worked every time.

[@pixoarcade1519]

Yeah well last question.. how do I check for bootloader presence on Arduino/3D printer board? It might help diagnosing problems..

[@Henchman1977]

Thumbnail text should have read "No Bootloader? No Promblem!" missed opportunity Thomas....

[@palewriter1856]

Why? Do misspellings draw more flies??

[@raymondwilliams6878]

Wish this was out a couple weeks ago. Would have bought a tinyISP instead of an Arduino Uno! Thanks for the info

[@VRietySociety]

actually did this a few months back to config a arduino without a usb cable since i didnt have the cable needed x'D

[@kristoferbruxvoort416]

Awesome! I had a faulty mini usb port on my Ender 3 and this method helped me get around the issue.

[@paccoalbrecht]

Danke für das Video, nach mehreren Stunden rumprobieren und surfen auf dein Video gestoßen und das hat dann zum Erfolg geführt. Knoten im Kopf gelöst:). Danke!

[@joshuahuman1]

Could you do a video on the mks sbase 32bit boards and possibly show how to update the firmware to marlin

[@buettstube]

Thomas Sanladerer You saved my day. Hero.

[@kgrach]

NOPE ,TOM that won't work with the newer Arduino software. If you use the wire diagram on the Arduino web site, it just won't work with the ISP software currently as written. Trust me, I just tried it with a mega 2560 to flash a bootloader to an Anet board. Using Arduino CC version 1.8.5 ( 1.8.6 has been know to throw errors with marlin ) Read the instructions in the software You wire from the ICSP header on the mega to the ICSP header on the printer board ( J3 in the case of the Anet board ) with reset on the Mega board (the programmer ) connected to pin 10 instead of reset on the ICSP. Also note, if you get a wrong chip error when programming the bootloader on the ANET board or it bombs out. Tell the Arduino CC software that the Atmega 1284 you are using is a is the 8 Mhz. chip. Then switch it back to 16 Mhz. before sending the marlin sketch to the board, and everything will work fine.

[@Pi-Tutorials]

I’ve used this method but did struggle to use a Mega as a programmer, I had to use an UNO to get it to work.

[@ZaPpaul]

Another concise guide, well done Tom :)

[@jensschroder8214]

The Mega2560 needs a bigger bootloader than the smaller ones because the small bootloader can only write 128kbytes. The larger bootloader can write 256kbytes.

[@NochSoEinKaddiFan]

That was easy to understand and filled with the necessary Information to make an informed decision. Thank You :)

[@williamflinchbaugh6478]

Is there a way to do it with a raspi 3? Have one of those laying around and don't wanna buy stuff.

[@electronJarvs]

Yes, flash my ender 3 with an rpi3, instructions are on google.

[@ChrisRiley]

Thanks Tom, great info!

[@widyahong]

THANKYOU VERY USEFUL TO UNDERSTAND BOOTLOADER AND ICSP FLASH METHOD

[@josephr450]

Hello Thomas, thank you for posting this video back in 2018 on how to add a boot loader to your 3D printer controller board. I have an original CR10 and wanted to add the boot loader, I have a USBASP V2 and wondered if this could be used as the programmer instead of the USBtinyISP? If so is the process the same? I appreciate your help. Thank you.

[@Phil-D83]

Can these be used to fix a stuborn anycubic 8 bit trigorilla that wont take updates?

[@richardvansoest]

Ok thanks, i was getting nowhere with my cheap usbasp board, now i try this method. Ive got a DDDrop Leader industrial 3Dprinter with old firmware (its no longer be shipped) I got the latest firmware from the dutch manufactor to upload to the mk2 board (the usb port is not recognized by a computer, this is on purpose i heard) So i have to use the isp Way. I want to try te read out the original firmware first, is that possible ???

[@MadeWithLayers]

It should be possible to save ("dump") your original firmware with these tools, but I've never needed to do that (so take this with a grain of salt) The internet seems to point towards a tool called "AVRDUDESS" which lets you read and write flash and EEPROM to and from AVR chips, using a separate Arduino like I showed. Keep in mind you need the flash and EEPROM content on the AVR to be from the same firmware. Also, it's possible for the manufacturer to disable reading firmware entirely, so YMMV.

[@hansdegroot652]

My 4.2.7 has no isp what now? Enders are very messy. I did get it back to life by fkashing firmware via sd. But the but tge board says 4.2.7 but i needed to flash 4.2.2 or the steppers did not work. Feels bad. Great video. You explained the boot loaders wel

[@dumle29]

Heh laughed a bit at the absurdity that Atmel couldn't call it ICSP, because that was a microchip trademark, so they called it ISP "In System Programming". I wonder if that's still the term they use since they were aquired by microchip.

[@achmed20]

BOOTLOADER! go with it! saves so much time when you f*cked up your ROM and you have no idea where your programmer is.

[@PeterGMerchant]

Hi Thomas, thanks for all your terrific videos. They are very helpful. My current problem is that I have killed my Arduino UNO, and am now trying to use a USB to TTL converter. The TTL output is 5 pins: gnd/RXD/TXD/3V3/5V and I don't know which RXD/TXD pins to connect to MOSI/MISO on the ANET v1.5 board. Can you advise?

[@claudiusalbat4048]

I had some strange experience with the USBTinyISP (Deek Robot v2). Burning a bootloader failed after successfully erasing everything on my Ender-3 Pro v1.1.3 with Arduino IDE 1.8.5. However I was able to upload a marlin sketch with the USBTinyISP - verification failed - but my Ender 3 is working fine now with BLTouch enabled. I think an Arduino Uno as an ISP programmer is much more reliable than the USBTinyISP.

[@claudiusalbat4048]

For what I found on the Internet so far, the USBTinyISP cannot address the whole flash, the reading process cannot work. This is why the flash software works after successful writing but with verification failed. Regarding the failed bootloader I found that the USBTinyISP is too fast to burn a bootloader. So after turning on verbose mode in Arduino IDE, copy the command from avrdude into the terminal and add -B 4 to slow it down. (Not yet tried since my firmware is working just fine)

[@snappermancation]

@@claudiusalbat4048 yep needs to be a warning about it, just killed mine by following this video and not reading the comments Arduino UNO on the way

[@claudiusalbat4048]

snappermancation i was able to burn a bootloader with an older version of the Arduino IDE, I think it was 1.8.3

[@snappermancation]

@@claudiusalbat4048 managed to get it to work, installed the boot loader and flashed over usb

[@anthonyrich1592]

@@claudiusalbat4048 Sounds like you have a USBtinyISP version 1 board marked as a version 2. Version 1 boards cannot access more than 64K of the target board's Flash. Genuine version 2 boards have no problems at all programming the ATmega1284 and ATmega2560 with their 128K and 256K of Flash. If in doubt you could try a USBasp ICSP programmer from Freetronics, they have no problems with any of the Atmel processor line.

[@bikerdude221]

Hey @Thomas Sanladerer - I really need your help!!!! After getting the USBTinyISP, I've followed your steps with no BOOTLOADER and here now my Ender 3 doesn't boot up and remains on the blue screen with nothing. It is now refusing to communicate.

[@drjonathanswingler800]

Thomas Sanladerer did you reply to bikerdude221 comment...? This has happen to me!!!! What is the way forward?

[@raffia16thblaze10]

maaan this thing came in real handy. my GT2560 has no bootloader either sooo. gonna see how it goes once the thing comes. being a revision A board it has no dedicated pins for the usbtinyisp cable. gonna have to get creative and make my own that fits the lcd and sd headers

[@andrmai930]

ingenious congratitions , I would like to know if you can do this even on the Lerdge x board (mine is briked )

[@MuditGupta89]

Please make an updated video on Marlin configuration.

[@sammar4123]

already has mate

[@MuditGupta89]

the latest I see on the channel is from 2016, we now have 1.1.9 out and the 3d printing firmware front has evolved a lot. Would love to have Tom do a video on configuring Marlin from download.

[@spikekent]

Invaluable guide and info as always Tom. Learn something new with every video you release.

[@DarshanRayate1]

How to upload bootloader in stm32f103rct6 ender 3 v2 4.2.2 My boards ic was damage so I have replaced the stm ic in board but it's not taking firmware update via sdcard so how to upload bootloader to it

[@kkuenzel56]

Could you clear something up for me? On Creality's website, they have firmware files for download, however they have a PDF. file describing updating the Creality firmware through usb and Cura. No talk of bootloaders. Could you please tell me if this method is legit?

[@EngineeringVignettes]

I would guess that Cura will tell the target (printer controller) to reboot and then it will "catch" the bootloader (after the reboot) and proceed to do a firmware download... sounds like that is what Creality is doing here... So the board likely does have a bootloader; it is required to do any USB programming. - Eddy

[@JSunBurns]

Will this work on a FlashForge Guider II or equivalent board that doesn't use Marlin firmware?

[@333donutboy]

Nicely done! I always wondered what that "burn bootloader" option is for in the arduino ide menu is for. Thanks

[@joshtiel2980]

How did you know that I needed this info just now?? 👏

[@davidwillmore]

For me this series has been three weeks late. I stead of learning something, I get nod along and say, yes, yes, that's true.

[@1FishinAddict]

old video but wonder if this method can be load klipper to the old board ?

[@uwtab6898]

Hi, thanks for the video! Interesting. I do have a question. Could I use this to fix a broken controller board on the Comgo Z1? It seems bricked and not being able to install firmware via tf-card. If yes, I can't find any available pins on the board, would that mean there is no way to connect the board with the usbtinyisp?

[@joeblow7374]

Basically, quite informative. But could slow down a bit, you're not running an auction, you know.

[@ctsnctechnologychannel6342]

I have to agree, he talks at the speed of a processor chip and in a youtube video there are no time limits OR RESTRICTIONS

[@Anastasis32]

What about the Anet v1.5 mainboard that has no 6pin connector? Only a 10pin right above the LCD's 10pin connector.

[@stefanw8203]

Thank you very much for this overview

[@MakerFarmNL]

Very good info thanks!! No I am not bothered by the USB cable :-)

[@petersolomon3505]

Nice video, thanks! can you use USBtiniISP to upload boot loader to raspberry pi as well?

[@BrainSlugs83]

I've been working with raw ICSP stuff for a long time (even for attiny chips in bread boards, etc), and I'm surprised how accurate you were, and also that even I learned something!! Next time I can't find my crazy 10 year old $70 ICSP programmer, I might try the arduino isp... Heck, I may even grab a couple of those $3 programmers. Thanks Tom, you're the best! :)

[@davidwillmore]

I would avoid them as a general purpose ISP for the reasons stated elsewhere--limited to 64k of memory. Get a few USBASP devices. They work a lot better.

[@BrainSlugs83]

@@davidwillmore my main isp is an STK500v2 variant of some kind. It does the job, wouldn't hurt to have backups... Why is the arduino isp limited to the size it can program?

[@davidwillmore]

Keith schaff pointed out that the AVRtinyISP is the one with the limitation. I assume it is because it uses o e of the other Atmel ISP protocols with more restricted addressing.

[@fonsecaj2]

Very usefull video! Thanks a lot! I have a question: my I use this ICSP board to upload programs to an Arduino which USB adapter is broken (PC doesn´t recognise the board)? It happens I have one Arduino Mega 2560 and a MKS Gen L01 with the same problem.

[@wagnerlip]

Why create more confusion inserting an Arduino in the mix? You can use just a USBASP little board (eBay $5) and AVRDUDE or AVRDUDESS in the PC to program the chip on board the controller, having the ISP 6 or 10 pins available. If you have the binary file to be programmed into the controller chip, you will only need to install AVRDUDE or AVRDUDESS into your PC, USB port and 6 wires between the USBASP and the controller board. People love to complicate things they don't understand very well.

[@unlock-er]

Hi Thomas, just stumbled upon one of older vid. I've got creality 4.2.2 board that has got the GD32F303 MCU. I flashed it with Klipper by mistake with the STM bin. And now, when I tried to flash it back to stock, it doesn't want to flash. No matter what u do, the board just don't responds to the bin file when booted back up. Not entirely sure if I've bricked it. I'm kinda new to 3D and wondering if this method on your vid might be able to solve my issue? I also notice that I can only see 4 pins for the ISP on the board. Is that even possible or am I looking at the wrong set of PINs? If you know of a better way for me to flash, pls do send a link or guide or perhaps you've done on one of your other bids that I've missed. Ideally, I'd like to flash it with Klipper.

[@ISeeFurther]

With all the buzz going around on linear advance, I want your take on it ;)

[@BeetnaOurHome]

sir, could you help me to connect arduino uno with my Trigorilla icsp pins because i don't have any experience with this case. thank you

[@Lucas_sGarage]

pls can explain me how change the motherboard of the anet e10 to a MKS gen L ? pls make a video

[@johnt4d540]

Useless video! Tom, it only works with chips with 64K or less flash. That means "normal" boards with 128K or 256K cannot use this method. I expect much better information from you.

[@anthonyrich1592]

Not a useless video. Sure, version 1 of the USBTinyISP only works with CPUs with 64K or less, bit version 2 works just fine with ATmega2560 CPUs - I do this regularly. If you're buying one off of AliExpress or eBay instead of Adafruit then make sure you're buying a Version 2 board. If in doubt there's also the USBasp ICSP programmer from Freetronics.

[@ivanperez5480]

great explanation, thanks.

[@SuperPablo565]

como puedo realizar bootloader en placa MSK GEN L V 1.0, con arduino Mega 2560 ? Gracias

[@seanwilliamodonnell]

I thought i knew what i was doing, now im scared to load new firmware and bootloader to my ender 3 :/

[@dgpix4956]

How do I know whether or not I have a boot-loader on my board? I am currently using the Anet A8 with original main board. Thanks in advance for help.

[@humloves]

Thanks for your video! After watching it i was upload marlin using programmer on my ender3 1.1.4 board!

[@funnyrabbitadventures]

hello how did you achieve that , i end it up with a bricked 1.1.4 board in the process

[@StigBSivertsen]

On Creality CR10S Pro v1 you have to have a bootloader, the screen won't work without.

[@MedDevotee]

What about using Raspberry instead? You can use it for Octopi after that. I think it's a waste to buy board only for updating the firmware.

[@helge1104]

Is it the same way to program the SKR 1.4 Turbo that does not take firmware via usb only via SD card? The thing is my card does not currently want to work whit read from sd card the lights are on but nobody is home sort of speak. The only way it will communicate is via octopi but only G code and all other commands like in monitoring functions. but no update functions work for me..

[@nobytes2]

Tbh I don't understand the point of this video, loading a bootloader is easy. Then every time you want to load new firmware you use USB no need to pop off the cover anymore for and use an isp shield. Bootloader is definitely the best route.

[@marcosramirez385]

I had an arduino mega and I bought an arduino uno to flash the bootloader for my ender 3. If only I knew I can use the mega to flash.

[@PeterGMerchant]

At 8:15, when I want to burn a bootloader to my ANET v1.5 board, do I have to set the Board in the ARDUINO IDE as an AtMega 1284? (That is the processor for this board.) Thanks.

[@johnm.gerard1718]

I am even more confused on how to upload the firmware. i get to a point where I think that I am understanding this stuff and then I come across info that just creates more questions. I updated My 2011 mac book pro following the step by iFixit. That was very easy to follow even thought there were multiple steps to perform. I wish someone would put together a set of instructions like iFixit. They have the steps, pic the whole thing.

[@mislavkirac4597]

My Arduino IDE does not recognize this USBtinyISP from AliExpress (PORT under Tools is grayed out). I tried Adafruit drivers, Arduino drivers, Zadig drivers, nothing works. Also unable to "Upload using programmer" or "Burn the bootloader". Any suggestions?

[@slicerjohn1897]

Why can't it be as easy as updating my Tom Tom lol

[@markal3023]

I know this is a really old video, but I am trying to get a second life out of my old Wanhao i3 and a BLTouch. Is there a way to upload firmware without a bootloader to save space using VSCode? Or a way to compile with VSCode and upload using Arduino IDE? Maybe a topic for a revisit?

[@n14xon]

So for clarity, is this you can bootload with Arduino OR usbtinyisp, not both?

[@GoranMilici]

I have an arm processor. What should I use then?