According to the answer given to the OP, their cameras and AI can’t detect the “pink” nozzles. It was luck that they were detected in earlier firmware version.
If that’s so I can see an issue.
Eh, keep screaming. One of them will cave.
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I have not used E3D nozzles in the H2 series yet but isn’t there a way to turn off auto detection and just inform the slicer that is a HF nozzle instead? Just asking, did not look for it and i am not near my machines.
Edit: since i was curious, i did a quick search and if there isn’t a way of turning it off in the machine, at least modifying the machine gcode gets rid of the detection.
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Good find, I haven’t received them yet, only tomorrow, indeed you can set manually, but I think it tries to read again when the print is starting, not 100% sure on that, let’s see, but with the diamondbacks it should be fine
still a good workaround for the 500s which I’m also planning to test
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Well on the H2S (no recognition) the diamondback isn’t even a choice. I use tungsten setting and it works great.
I was kinda getting at the “turn off the setting and enjoy” angle. Given you can turn off build plate detection and nearly every other option (no, not all) I figured you could just simply slum it and tell the printer what you have.
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Bambu Lab x E3D: Our First Step to Embrace the Aftermarket
E3D did not produce the black hot end according to our requirements.
I guess the embrace turned sour…? 
I suggested dark colored stickers in the other thread, but now looked it up and found/confirmed there multiple sources of high-temperature stickers available. Not sure how hot the heatsink gets, but eg. 300°C+ seems doable (eg. used as labels in high-temp environments like flow soldering). I know, that’s neither here nor there. Probably too expensive for one person to order just for themselves. And hopefully E3D has considered this already. Might not hurt to ask. Or, and old-school group-buy of stickers? 
-M
Threadly reminder that there is wisdom in using only OEM parts in mission critical machines.
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So I can at the printer tell it these are high flow hardens hot ends. For left and right. Then since the 01.03.00.00 firmware randomly or from the control panel it will or I can ask it to scan the hotends. When it does this it will report hotend unknown. And it will not print. From handy I not found away way to fix this. So it go to the printer time and manually set it and restart the print. I can print a plate. Then send another plate and oh you’re not going to work. As for the fixing it in the code. Editing gcode is not really my thing. I design on cad send that to the slicer and expect to be able to print. And sometime it will and randomly it will not. My view is I don’t buy random 3rd party hardware. But these were supposedly officially supported. But I can only guess this collaboration has soured.
And the point of my post is to give our community the forewarning these come with issues.
fyi when they print they are excellent. I print mostly in PETG and the stock head tend to get funky with PETG sticking to them. Where are these seem to be much better.
Please post if the diamond ones are ok I may jump to these given I looking for 0.2 and 0.8
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Maybe I’m just thinking with too much april 20th leftovers, but could you just like…. sharpie over the purple?
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I been thinking along the same sort of lines. I thinking black car brake calliper paint as this is high temperature paint. If I can mask off the text and spray them black
And I guess this is the final answer from Bambu Support
We understand how frustrating it is when your 3D printer fails to recognize the hotend correctly.
Our officially approved E3D hotend is black as you can see from the photo in our blog. However, the E3D hotend you currently installed is pink. This is the root cause why the hotend cannot be recognized normally by your printer.
Given the current situation, we can only recommend that you contact E3D company for further assistance. We sincerely apologize for the inconvenience this has caused to you.
If you have any other questions or if there is anything else I can assist you with, please don’t hesitate to let me know. We are here to provide you with the necessary support.
Best regards,
Bambu Lab Customer Support
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I think I can see their point. It’s a 3rd party part and E3D is given specs and expected to adhere to them. Bambu doesn’t manufacture the parts and doesn’t provide warranty on them as well. That puts the issue at E3D’s feet. This is all based on current information.
Now it’s a bit of a bite that E3D passes the buck when they are the culprit here. They either didn’t understand the assignment or just didn’t care. They should provide a fix for it as it will harm sales of the Obx 500.
It’s also a bit of a bite that Bambu can’t aide them, and the two work out a fix together to satisfy customers. Assuming there is a contract with parameters in place for the manufacture of the hot ends they really aren’t liable or responsible for it though. I think you can get mad all you want but it comes down to being E3D’s responsibility to make the customer whole. If the firmware can be changed (think we are looking at contrast simply being off due to the lighter color) then BL could and should push through a fix. Remember though, it’s really E3D problem.
I can’t help but wonder if there’s money at play. E3D would license the design and pay for it. Perhaps either they won’t pay, or BL want’s more. Who knows with companies.
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I’m just throwing this into the room at your own risk.
I can’t verify this, as I don’t have an H2D. However, theoretically, you could remove the line with the camera detection from the G-code, meaning that it would simply apply the settings you previously entered in the Slicer.
H2D g-code - is located right in the machine_start_gcode
nozzle cam detection allow
It is particularly interesting that the following is already provided for by the g-code:
nozzle cam detection not allowed
As I said, this is just a clue, not a solution, so use it at your own risk. However, maybe it will lead to further findings.
I would and do agree to a point if these was not reported by Bambu themself as a joint collaboration which is why I have invested into it.
E3D should own it and they are being silent right now and E3D should be pushing Bambu to apply a fix in the firmware or E3D should change to meet Bambu’s requirements and issue a replacement scheme
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I have seen others stating you can edit out the G-Code. But for me that is a step too far. Maybe one day i will get into writing / editing Gcode. Or Ollama to do this for me. But for me this is a turn key solution. I design in CAD. I export to Bambu Studio. I may tweak a couple of support setting. Then hit print and wait for someone cool to pop out.
Messing around with G-Code because two company seem to have fallen out, just seems wrong.
But thanks for the input. Time to fire up Ollama Gemmi 3.0 and see if “we” can write G-Code.
I don’t understand this thinking. If a third party fails to adhere to design guidelines then either kick the item out or have the party fix it. Bambu has other E3D nozzles that work fine, kicking them out (maybe under a contract) seems the nuclear option.
confirmed that the diamond back detection works - they are listed as standard tungsten carbide, which according the E3D wiki is what is expected
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This is the statement from Bambu.
I quote “We are excited to announce our very first ecosystem collaboration project”
eco system collaboration. From bambu. That statement to mean both parties are working together.
Therefore at any point in the “Collaboration” did E3D and Bambu not look at the colour and Bambu say nope “Must be Black”.
It seems to me Bambu updated the firmware. point 3. of release note for 01.03.00.00 and this broke it. Now they seem to have fallen out and Bambu are stay “its Pink” it not its purple but you say Tomato i say Tomato. Therefore its hay customer your SOL.
to me this is not some 3rd part think is not working. This is both Bambu and E3D togetter.
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Well that one is actually on E3D, if they received design guidelines from Bambu and then decided they wanted to do purple or pink or whatever then it’s on them