You’ll need a micro SD card. Amazon has them for $13 USD 128GB should be all you’ll need. Don’t forget a reader for your computer
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So I got a AMS power board and AMS main board. I asked for a printer main board because that seems to be the issue but they said these should fix it. On startup after I connected it all up it suddenly restarted (seemingly when it would recognize the AMS but I don’t know) and booted up again and no AMS is detected. Seriously I had an AMS for about eight hours before the thing just stopped working. I’m asking them to just send this printer back. I’ll exchange it if they offer, as I really want this all to work, but we’ll see what they say.
And it was my MC board or AMS interface board (well probably, heven’t got them yet). I tried to insist it was this based on what you guys have posted here. The language barrier might be an issue (I assume their support staff is out of China, as I kept trying to point out my multimeter results 4 or 5 times and finally they came back and acknowledged that). They were nice enough to give me some free PLA, but my initial experience has not been great (with the AMS, the printer speed and results are very nice).
I guess I’ll just be talking to myself in this thread 
. Replaced four boards now and AMS still doesn’t work. Is there soemthing obvious I’m missing? I don’t pretend to know my way around a multimeter and stuff, I thought this was the printer that didn’t require a bunch of tinkering. The only board I haven’t replaced is the one between the AMS and printer (that takes filament). I think I just want my money back. This has been too much work for something to still not work like this. I don’t know if I’m just bad at installing these boards but the printer still works even though I just replaced the main board, and AMS board, on it so I think my work is okay. I just can’t believe they won’t replace the printer and AMS when it didn’t even work four more than 8 hours.
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What you don’t want to do is cross-ship parts and replace boards until you are out of warranty. I hate these kinds of stories because there is a bean counter somewhere that thinks scrimping on customer service is saving them money. It may be but the cost is high when people post about it. Who knows how many sales get stopped cold when someone sees reports like this, the low customer service ratings, etc. I hope you get it resolved.
In my case it WAS NOT the AMS main board. They sent me a replacement but I had the same issue. I sent them the new logs from the time I installed the replacement and the error with the firmware and the sent me a replacement X-1 Carbon main board to install.
After replacing the printers board I no longer had the AMS error and both the printer and AMS firmware updated with zero issues.
Interesting. I’ve replaced every board but that one it goes through on the back with the filament. By all means this should have fixed this. Also got replacement cables so it shouldn’t be those. Replacing that main printer board was a bit of work for me.
I know a lot of guys in this community are really good at this stuff, since they are from the reprap community, but some of us have barely used a multimeter. Expecting customers to do a bunch of multimeter checks seems like a massive assumption on the part of their tech support (I fully admit that maybe I screwed up and sent them misleading values because I wasn’t quite sure what I was doing). One of the reasons people don’t like bambulabs is they are trying to be the Apple of 3d printing with their tight control of the ecosystem and vertical integration. Imagine Apple asking their customers to check voltage and resistance values if their customers product stops working day one? Clearly they have some growing up to do.
With Apple products you can ship them back or bring the defective product to their retail store to get fixed. Not a simple thing to do with a 3d printer or any other large product that need to be fixed. Every manufacturer has this issues it’s not just Bambu Labs. Bambu Labs Wiki and detailed repair videos makes the repair process simple and easy. For me at least
That’s true, I would expect this process if I had a working printer day one and these problems six months later. The fact that I had these issues day one makes it a lot worse.
Agreed there wiki is excellent.
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My fear is that one board was bad and causing another board to go bad. That would be very unfortunate and make this board swapping process a lot more complicated.
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Im having this exact issue. New AMS, 3 month old X1C printer. Printer updated from stock to latest firmware available.
From the fet go, AMS was not displaying any lights at all. It was detected by the printer, but i couldnt load filament or anything. I tried to print something without doing an update, it would say the filament ran out in A4 or slot 4 or whatever.
The AMS firmware update from stock to the recent 00.00.06.44 would get to 97% like all the other posts on this thread, then after 30 secs or so, would display failure.
So irritating, ive tried, standing their for like 3 days on and off, so long my feet started to hurt. Nothing, did all the Multimeter checks, unpluged, repluged all cables in.
I went back to stock on printer firmware (can only downgrade on the phone app as far as i can tell) then tried re-installing the AMS and printer firmware update, with no succes.
I tried a few different variations of downgrading to different firmwares, eventually I got a red light coming out of the back of the printer “grill” area. Not sure what that was.
Please someone help!!!
Don’t waste you time with software resets. This is a known issue related to the main X1C board (and in some cases the AMS board…read messages above). You need to send a support ticket, for me a replacement main board fixed the issue.
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Good evening to all
This evening I did the update and everything went fine. At 97% there was some kind of reboot and then everything worked fine.
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@rlonghitano is right. Read through and I don’t think any were fixed except by replacing a board or two. It’s very probably a hardware issue and bad luck you got a bad one. The sooner you fire up a support ticket, the faster they can get you going.
But maybe there is another fix or it’s another cause? Check the wiki on how to gather logs since that’s probably something they will ask for.
So Bambu Lab is sending me a replacement MC Board for the Printer (X1C). I will install it once it arrives (like 3 days maybe) and let everyone know how it went.
Thank you for the replies and attempts to help.
Best regards,
Bryan
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After updating my X1C to firmware version 01.08.02.00 (20240812), my AMS failed to connect, displaying a jammed filament light sequence. The X1C showed a failed update error and wouldn’t let me restart the update. After power cycling, I successfully restarted the update through Bambu Studio and confirmed completion on the device.
It seems sending a print job during the first update attempt triggered the error, and power cycling doesn’t allow a restart. I understand how frustrating it is to go from flawless printing to hours of troubleshooting—good luck!