Bootloader Flashing Guide - CR-10/Ender 2/Ender 3/Ender 5/X3S/X5S/Wanhao i3 - 1284p Boards

NOTES: As long as your UNO LED is flashing at a steady rate (fast or slow, doesn't matter) the UNO is ready to accept the programmer sketch

Remove any SD cards from the board BEFORE flashing the bootloader. The pins are shared with the programming header.

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(Used with Permission)

[sandrarusso]

I'm definitely not a computer person at all, and I was able install the bootloader easily with the kit I purchased from your website and your tutorial. Very well done. Thank you.

[stepshred]

Dude thank you!! I tried other popular channels before yours to no success! You literally explained how to do it all in 2 minutes, whereas in the other videos it took 15 minutes and did not work!! Thanks again!!

[VideoCesar]

Perfect video! 2 years old and still the best video of how to make an Arduino Uno a bootloader. Even newer videos today still skip the step to set the Arduino as a programmer. Really glad I clicked on your video. You keep things on point and don't get into explaining things that don't apply cause it will just lead to more questions.

[jingoadams]

Dude you Rock. you made it painless and less technical. Thank you!!

[michaelprice]

I've been looking for a week for good bootloader install info and finally found your video. Excellent job.

[jsunshine]

Dude, you just saved my life. I have been at this for 3.5 hours... and I did not know how to tell the Uno it was going to be a programmer (that step was skipped in all other videos. ) Thankkk youuuu!!!

[joelhuebner]

You seem to be the Most Technical of all the 3D nerds. My compliments! I am in the "land of the confused" for the 2nd time. I started with a MONOPRICE Mini v1 (refurb) yea I know. Now I've had an opportunity for an Ender 3D pro. I'm using Octoprint on a pie 3b. It's never happy. Wont print, have glass bed, stepper levelers. It is real quiet anyway. I have leveled manually so many times. Changed .04mm heads, cleaned heads (figured that out too) I'm a 30 retired Systems and Network Engineer. The problem solving patient guy. I turn the orange light green in any data center. A new terminal follower. JLH

[daneable]

I have been pounding my head against the wall for hours. Thank you.

[vicstrauss]

Thanks dude. The explanation about the jumper position is not clear or even missing from other similar videos.
Thanks! You got me on the right track again.

[agyro]

Can you also use an arduino mega instead of a Uno?

[LemmyCaution]

Just the info that I needed as I got my Ender 3 yesterday. I got my Pi 3 B+ I know now thatI should NOT use that for the boot loader. Thank you and have a nice Sunday.

[jackharvest]

Thank you for making this straightforward. Octoprint has been so ANGRY at me for having firmware that has no thermal runaway protection, and I couldn't figure out how to upgrade for the life of me. Finally found your video, and plan on adding a bootloader, and upgrading my [likely outdated] Merlin firmware on my Ender 3.


Thanks!!

[paperpags]

It's now 2020 and this is the video that made things easier! Thank you for this!

[kevinmcinerney]

After opening AruindoISP at 12:08 anytime i use the openfirmwarewindows it opens the AruindoISP and not all the files for the bootloader (TH3DUF_R2 and such). Do I need those or do I just burn the bootloader after doing the AruindoISP. Thanks

[mrhander]

thank you so much for making this easy ....my bootloader somehow pooped the bed, ..luckily i had a spare uno..and i got it running again just after i watched this one.. im trying to find an excuse to upgrade the 10s4 with the tough dual setup.. plus ezabl and ezout.. but i think we all know im not going to need an excuse..

[dwightpatch]

wish i found this weeks ago after i struggled to figure this out. awesome vid.

[DJeff_DPrinting]

Awesome! Thank you!! Had some kinda issue with my Uno and ended up using a pro mini. It worked just fine! You rock!!!

[samrodgers]

Awesome guide. I had the bootloader along with the new firmware going on my Ender 3 in no time with no issues using your guide. I can't wait to get the bed leveler and add that to my setup. Keep up the good work.

[Beunytoutou]

2021 still works great, thank you TH3D! Except the Arduino Uno Driver that I had to search on the Internet for quite some time because it would not update, even after trying some tutorials about uptading it.. and finally made it, but without even knowing how..

Anyway, amazing tutorial for a noob like me and the cheap Uno bootloader kit was perfect for this. Thank you!!

[trollingdollars]

Great video. The only small nit pick I have is you talk a touch fast. A printed outline of the steps involved would be helpful. I will be trying this out very soon. Thank you.