Faulty RGB Laser Projector | Can I FIX it ? 

That was a serious hack. Well done. You solve problems like Sherlock Holmes. ❤

I love these videos, not just basic repairs, but also hacks/mods. Unbelievable...true understanding of electronics and reverse engineering. Keep bringing great content! You have my full support!

I was amazed about your very creative approach to this problem. Especially the last step with removal of the storage chip and the laser rewiring was a real risk, which turned out to work. Gratulation!

You've lost me completely when you made cut onto pcb and then wire. Oh man! Thanks for sharing your knowledge!

Absolutely fascinating. Didn't realize debugging electronics could have me hanging off the edge of my seat. Thanks for sharing and you earned another subscription.

Your knowledge never ceases to amaze me. With every video you demonstrate great skill and patience. I've worked with a lot of techs over 20 years and follow a lot of repair youtube channels. You by far have impressed me the most in how you calmly resolve things. Keep up the great work!

Quickly becoming my favourite channel for electronic repair. Top class, well thought out 'bodges' to get stuff working. I tip my hat to you Sir.

That was interesting Mick but it seems (to me) to be a pretty low end laser projector. Images are okay but it appears to be pretty difficult to program. For what you paid, well worth it for the experience. Thank you for posting it

Wow just wow, incredible what you can do, I love how much you go into the details of things, and find solutions that no one would have thought of, I tip my hat to you good sir.

Instead of cutting the 3 traces, you could lift the resistors (tombstone them) and connect the wires to to floating side.

I have no clue as to how you work this stuff out. From what I can see you have literally backward engineered the card to suit the Github data you found. Amazing.

Nice fix lad, good to see someone going the extra mile with the micro controller. Nice one for keeping Geordie's in the RU-vid spot light 🙂

A friend of mine used to work for a sound and lighting company about 20+ years ago! He showed me a laser setup that used a argon vacuum glass laser unit! It had a power supply about the size of a electric cooker and needed a cold water supply to keep it cooled! The running water came out warm when the laser was on! It needed a 240 volt ac 40 amp power source! It’s output was about 2000 volt dc and was very dangerous ! The transformer in it was massive and the whole thing must have been nearly a ton! It was full of safety switches and capacitors about the size of beer cans! There was a water cooled heat sink with rows of 2n3055 power transistors! He said it would cut out if 25% of the transistors failed! Before he said anything I said no i am not touching the bloody thing! He said he only opens it when it’s complexly isolated from the mains and discharges all the capacitors! 2000 volt 40 amp mixed with water sounds like a death trap to me!😂 It shows how much technology has moved on with that wee box you are working on! Of course it’s tiny diodes produce the same result nowadays! Very interesting video and as I have said already you must have the patience of a saint!😂 Fraser

Thats pretty impressive - load a different firmware, rip off the flash memory, re-route the modulation pins of the lasers, and boom, it works! If the "show" files are in .ild format, you can find heaps more on the internet. ILD stands for ILDA, its the standard protocol for talking to laser, although your's does lack the 25pin ILDA connection. Nice work!

Remarkable! Auf die Idee, die FW zu flashen wäre ich nie gekommen. Great

Outstanding Fix. I'm sending you a virtual Pint .

Excellent diagnostics really enjoyed that thanks.

Nice! You can't find the correct firmware, so you just change the io's of the mcu to match the one of this firmware. Brilliant😁👍

Outstanding mod ! How people can thunbs down this or any of your videos, it blows my mind. Do you resell the devudes you repair or do you have an absolute kick ass man cave?

Incredible diagnosis and repair

Well done on the workaround. At a guess, the SD card is only supposed to have programs / on it and not the manual which ended up in the flash. I assume that you didn't have access to the firmware source, as then you could have changed the GPIO allocation. As you know, use caution with those mains connectors, although the cables were sleeved the connector rivets were exposed.

25:12 We don't have the same taste for music by the sound it! 😂

Absolutely stunning wow, great video

*** - at 26:39, top left corner.. looks like blown resistor... then at 28:57, top right side.. it looks like the capacitor got blown off & you can still see part of it..

I guess fixing is not only replacing parts I guess I have a long way to go if I want to learn how to fix electronics lol

Beautiful work, as usual. A question remain for me: after fixing a device, do you put it on a shelf (a Big One in this case)or on Ebay or a gift? 🙂

Wow very nice Video ❤

WOW

Hello. Do you have an electronic circuit of the Milwaukee M12-18SC charger? I can 't find her anywhere .

Too deep for me for the training that I got, mate.

Awesome.

So what do you think the root cause was? Just a corrupted flash on the processor? Was there no way to change the code to the new flash to change the pinouts instead of doing a hardware mod?

*** - After 3 minutes in.. I would guess it was either the microcontroller firmware.. or the flash file he loaded.. one got corrupted... there has to be some type of factory reset procedure? Also that extra socket on the microcontroller board... 4 pins (RX, TX, GND, 3.3V).. could be UART for flashing... [EDIT]: After watching half way.. i was correct.. also the 'Adobe' in the .bin file you read, was from the .pdf file that was on the SD card.. that is how he corrupted it.. ur prolly only supposed to have the 1 file ur writing on the SD card.. [ALSO], his firmware says it's to add USB streaming.. do you know the format & how to create the files used to display? is it a certain program that creates the animations to show?

What was the flash memory chip for, in the end it wasn't needed?

COULD HAVE JUST CHANGED CALLS IN PROGRAM

A link to the GitHub repro, in the description would be helpful to find the video via Google in the future

That was literally a jaw dropping repair/mod video. I LOVE IT

Amazing work Mick!!!

overwrote the firmware. brutal.

Hi I love your videos. I would like to ask you the j link jtag is also suitable for emmc also? Kind regards

amazing

Loving the vids mate - always loved looking inside things from a kid - like yourself. Would you have ant recommends for online courses for electronics - quick run thru basics and then onto more complex...? Wor missus is from Whitley Bay btw - you must be close to there 😂😂

you are one of the best steampunk hackers.

As I heard "it worked fine, until I put the SD card in", I thought instantly "firmware overwritten" (probably by the previous owner, who made some mistake).

😮😮😮😮 Unbelievable!!!! Best channel for me. Great!!!!!!

Enjoy your video so much. Learn a lot from you! Great work!

Great thinking and very enjoyable fix !....cheers.

Woot! Another UltraEdit user. . .

Excellent fix thanks

Well done mate impressed as normal Keep at it.

neat and smart thought out conversion to the non internal flash version !

🤯 well done sir!

you touched the finely balanced and clean beam splitting mirrors! ....THE HORROR! :) ..but seriously, a NO NO!!!!!!!!!!!!

If you had access to the source code you may have changed the port pins over to the existing laser connections you have, rather than removing the flash? Either way - very nice fault finding! 🙂