Blackmagic Ursa Mini Pro 4.6k G1 - disassembly and repair
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- Опубликовано: 8 сен 2024
- I was bored and found a broken Ursa Mini Pro 4.6k on the internet for super cheap. Decided to get it and take it apart, see how it's built and what is wrong with it. Luckily I found the problem and was able to fix it!
Sorry for the long video, figured I'd upload it anyways for everyone to see. You can just skip through it :)
2 month update
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so it's been 2 months since I made this video until I decided to waste youtube server space and upload it. Since then the Ursa really has grown on me and I'm definitely going to keep it. Owning a professional camera like that was always a dream of mine but I could never afford one or justify the cost to just have fun with it. Also i'm happy that I could save this one from the e-waste and give it a new life. Up to now it has been working perfectly without a single issue.
I have been using it a lot and leaning lots about color grading, editing, sound recording and all that. The more I play with the Ursa, the more I appreciate the codec and the integration with DaVinci Resolve, as well as the dynamic range and color science of that beast. If I can imagine a look for a video, it lets me achieve it.
Best 350 I ever spent. Paired it with a nice used set of Meike S35 lenses, nice big screen, follow focus etc.
0:00 Intro and failure description
3:00 taking everything apart
24:41 examining the sensor module PCB
34:26 found the problem
38:51 trying to repair the sensor joints
45:44 reassembling the sensor module
58:50 reassembling the whole camera
1:20:12 results
Thank you so much for creating this video and congratulations on an awesome camera for dirt cheap! I have a functional 4.6K G2 and it's just awesome to see what the internals look like and what the pain points might be. There's just one little issue with it.
I bought the camera used a couple of months ago and didn't notice that one of the EF-mount screw hole threads were stripped by the previous owner. I've contacted BM support and they told me there's no way of rethreading the hole and they would have to replace the entire sensor assembly - cost of the sensor assembly itself is 2100€. The cost of labour and shipping were 200€ in total. I paid about 2000€ for the whole body when I bought it so it makes no sense to go the official route.
The EF mount works fine even with three screws. The stripped thread is at the bottom left position and the mount is very solid without it.
My father is a master craftsman and we already looked into rethreading the hole with a slightly wider screw. We have the equipment and materials. Do you think this would work? I would assume there are no electronics right next to the screw holes?
Had the same issue with my ursa and I thank you very much for sharing. I was afraid to reach the sensor but with the help of a professional everything worked out.
Сильный мастер . Уважение высокой квалификации .
Great find Diago, I have achieved the same result, I re-soldered around half the terminals using a magnifying glass and now my UMP is back in action. Many many thanks!
A fantastic effort and very helpful presentation. I have experienced a few dead ones where the mezzanine connector solder joints seemed to have failed. I have not been courageous enough to examine the sensor connections. Thank you for your time and effort in preparing this presentation.
Oh my God! It works. I had the same problem. And at a service center in my country, I was offered to change this camera for another Ursa Mini Pro 4.6k G1 with an additional payment. But they know about the problem of sensor overheating and contact breakage due to this. As I was told, this is an engineering error in the first versions of Ursa Mini Pro 4.6k G1 My respect to you!!!
Thx for the video!
I had a phone that kept overheating when it was in a VR headset - I found the evaporative cooling by spraying liquid from an inverted can of compressed air rapidly solved the issue and I could work indefinitely. I imagine the same would be true for your GoPro.
Awesome video! I'm sooo glad you made it! I want to buy one too, if it brakes can I send it to you for repair? :)) Bless!
good job ，Your video gave me great fix ideas
Awesome video, I wonder if anyone else has the same conclusion. I know that none even blackmagic’s offical repairers know the exact cause of the issue.
It would explain why heat cycles make it worse and how it can happen to a camera that has been off for months if not years as well as how reflowing the sensor can sometimes fix the issue.
Does anyone know if the sensor design on the g2 is different?
Damn! Fantastic work!
Muito obrigado por postar esse vídeo, ajudou muito! Por favor, continue mandando notícias sobre a câmera! Um abraço!
I have a G2 version, it had no power, i repaired power board and now i have only blackscreen, computer finds camera. there was corroded components, but luckily not to much
very very Good Video for me thk So much😍😍😍
This is a fantastic video and actually really interesting to watch! I've recently purchased a second hand Ursa Mini Pro G2 which very occasionally boots up with pink smears across the image. The menu icons are still there (so I'm assuming it's a similar sensor issue) and turning it off and on again seems to fix it, but it concerns me as I feel it may get worse with time. Bit of a long shot, but is there any chance you'd consider taking it on as a paid repair job? I don't know where you're based but your technical knowledge and skills are fantastic, having seen your own repair. Apologies leaving this as a public comment, I couldn't find any other way of getting in touch!
All the best
Elliot
Hi, thanks a lot for your comment! I'm based in Germany so might be difficult, but I would not mind having a look. I have heard about the pink smears issue but I'm not sure if that would be a problem of the sensor itself. Then again having intermittent connections can cause all sorts of unpredictable problems. Maybe just one of the data pins is not great and throws off something while booting. Who knows! If turning it off and back on seems to help I'd better not risk taking the whole thing apart just yet. My camera was completely dead so I had nothing to loose :)
Fascinating!!!
Good work, having the same issue how do i send it over for repair
Very useful, thanks!
try dismantling a Red DSMC2 camera, They make the URSA look easy
I'd love to try, if I can get my hands on one :) I'm currently working on an old Hi-8 camcorder from the 90s and it's a nightmare.
Hi! I have a broken ursa 4.6k g1 at home and wanted to see if you could try to repair it. Where can i contact you to know about how much would it cost to try to repair it? Thanks!
Would it be possible to shield the sensor and re-solder with a hot air rework or would that damage the sensor?
I have the same issue would you repair mine if so how much would you charge please great video thank you
Hi,
Did the other display work in the end?
You are lucky guy ❤
Hey bro, I used my ursa in the rain and thought a bag would be enough to protect it. The next day I started seeing horizontal bands (like 1 pixel high) and they'd show up as a thin orange line with focus assist. The camera worked for a few months after, once it got up to operating temp the horizontal lines went a way. Then one day it finally bit the dust and is just a black screen like yours now. Any idea if this is worth attempting to fix? I know water damage can be bad but this was a weird one because it had to have been just a few droplets that got in the wrong place. I'll go in and solder even haha. Took such good care of the camera it would be a shame to let it die this way so I'll try whatever it takes.
So interesting……..Thanks You. I have an opportunity to buy one with broken sensor for 500, should I?
Hi! If you have the tools and the time to fix it, then why not! But there is always a risk that something else broke in the process. I got mine for 350 and expected the money to be gone. Maybe you can negotiate a little bit or sell it for not much of a loss if it can't get fixed?
Does anyone know if the sensor uses unleaded or leaded solder? I'd rather not use the wrong spec and compromise the joints further.
Pretty much any consumer electronics nowdays uses unleaded solder as lead is toxic and legal reasons and stuff. Anything still containing lead has to be labeled with the Pb sign, like certain batteries or lights and would need to be recycled which is expensive. I used leaded solder for the repair as it's just so much easier to work with, flows better and sticks to things better. It has better sheer strength too, that's why everyone used leaded before it was deemed too toxic to dump into landfills.
@@chDiago Did you find the super thin solder was a help in this repair? Would a thicker diameter be a hindrance? I've got 0.5mm unleaded solder and 0.8mm leaded solder available that I'm hoping will be sufficient.
What about ursa mini 4.6k?
I have never taken apart one of those, would not surprise me if the construction is very similar to the pro
So what was the mechanical issue?
the cooling stack was pressing against the back of the sensor, which was only held by its own solder joints. Those would crack after a while.
Hey I'm having the same issue. Would you be able to fix mine like you did this one? or point me in the direction of someone who can?
Hi! sorry to hear that you have the same issue. I could have a look at it if you don't mind sending it to germany. I can't promise anything though. Maybe someone who can fix small electronics might be able to help, like places who repair phones and do SMD rework.
@@chDiago Yes, I'd be happy to since you have the experience and I believe I have the same problem.
Could you possibly repair my Ursa mini 4.6k sensor died
hi! sorry to hear that your ursa died as well. If you don't mind sending it to Germany then I can try :)
@chDiago at this point if it works again it's worth it..what is your email I can give some background too much to type here .. and thank you!
Email? Fb? @@chDiago
Please how can I contact you?
Hello!
My Ursa Mini Pro 4.6k was broken...
I need a good photo quality of one part of the main board.
My friend need it to repair my camera.
Could you help us?
If yes i will send you photo of broken part.
Roman
Hi! What photos do you need? Unfortunately I put my camera back together and it's quite a hassle to take the main board back out. Maybe I have a picture of what your are looking for already.
ruclips.net/video/1fibD17VWNk/видео.html
ruclips.net/video/1fibD17VWNk/видео.html
ruclips.net/video/1fibD17VWNk/видео.html
Hi there can you please please repair my Ursa Mini pro aswell?
I have the exact same problem with it. I will pay you great
How can I contact you
I live in the Neterlands so shipping it to Germany must be no problem.
Please I hope to here from you!
Hi! If you manage to get it here then I certainly could have a look at it, but I can not promise anything or take any responsibility if I can't fix it or for shipping problems. I left an email in my channel description if you want to contact me
Hey there, I have this exact same issue. Would you be willing to take a look for me? Obviously will pay
Hi there. Where do you live? Can we team up somehow to repair it ourselves? I am afraid of going deep into the camera maybe I break more then do good. What do you think?
Hi there, sorry to hear that your camera has that problem too! It's a shame that BM does not service them anymore. I'd love to help, would be a shame if a camera like this goes to waste but I can't take any responsibility for not being able to fix it or shipping. I have an email in my channel description if you want to contact me :)
Okay mate thanks for that. I’ll send you an email
I have the same issue would you repair mine if so how much would you charge please great video thank you