Las SD son de corta vida y dan problemas si escribes y borras constantemente, solo te durarán menos de 6 meses.
Las SD hay que escribir y leer, no borrar, llenarlas hasta el máximo de su capacidad antes de borrarlo todo o casi todo y repetir el ciclo.
Saludos.
I am also having the same issue. Sandisk SD card that I have used since day 5 of owning this printer. The issue has only been occurring since I updated to the newest release of Bambu Studio ver 2.1.1.52. I have power cycled the printer to no avail. I still have the crappy SD card that came with the printer and can use that in the meantime but it looks like I may have to roll back to an earlier version of Bambu Studio.
Hello.
You need to find out how to use SD and micro SD cards.
These SD cards are for reading and writing, not erasing.
Write to them until they’re completely full and only then erase everything you don’t need at once. Don’t write and erase daily, because repeated erasures damage the card.
Also, always use “eject card” before removing it from the PC and printer. The printer also has an “eject card” command.
If you don’t do this, SD cards will last less than 3 months.
If you have problems, format the SD card from the printer’s control panel, not from the PC.
Best regards.
I am not a novice at using SD cards and my card was far from full.
I find your response to be slightly belittling.
I recently purchased an A1 Mini and have 71 hrs on it and this started happening. It stopped midprint the first time. I reformatted the card via the machine and tried to restart and it just pops up the error before starting. Given my experience last year with the A1 I’m not overly surprised but dang. Bambu couldn’t even hit 100 hrs without an issue 
I’ve ordered another card and hope that solves the issue.
Post a different SD card it’s printing and hasn’t had the issue occur again. Yet lol. Test print (2 hrs)
Not sure if this is still causing any issues for others, but I had the same problem this morning - started randomly getting the MicroSD Read/Write Exception error and couldnt get rid of it.
For me - I ended up using the printer to Format the SD Card, then I shut down Bambu Labs completely and started it up fresh. After that, I sent a quick print through and it seems to be working again for me now.
This is still an issue which can occur. My A1 has approx 1100 hours printing time on it and two weeks ago it started throwing this same error at me. I thought nothing of it since it was still the OG microSD that came with the printer and ordered a Sandisk High Endurance microSD card to get rid of this nuisance once and for all. Here we are … two weeks later .. the error is back!
I never bothered to check the OG microSD until now - it still works fine when inserted into my PC. Throwing a testing tool at it to find bad sectors and stuff - so far not a thing wrong with it.
Afterwards will test the Sandisk too, but my gut feeling is that this is not a SD card issue.
Just got this error today on my A1M. Formatting the card, reinserting the card, power-cycling all accomplished nothing.
Just a small followup on the board replacement…
I haven’t had any issues since, all is good.
Hi,
I have the same feeling. I replaced the original with a SanDisk Ultra, and it gave me this error. About a month later, I had the same error with another new SanDisk. It seems like the card is not the problem. BUT once I got those errors, both cards became useless.
Started getting this i/o error on my 3 day old A1 combo with factory sd card (32gb). Some notes on what i observed so far:
printer is running latest fw 1.08.01.00. Newly installed bambu studio.
I had several good prints, slicing makerworld with bambu studio (using send option). ranging from 1 to 10 hrs. total print time is now 28 hours.
3) The first i/o error occurred almost immediately after I naively hit the back arrow on the print status screen while printing 5 hours into a 10 hour print (did not pause first). I was just curious what the arrow was going to show, hoping for some deeper stats or something. Back arrow was enabled, so I was confident it was not a bad thing to do. An even more brain-dead screen appeared with minimal info about the job, THEN THE CRASH.
5) I pulled the card and put it in Win 11 PC. Was surprised to see it nearly 75 percent full.
I ran a disk check and it found errors and corrected them.
I then deleted the useless low quality recordings from recording and camera folders, and deleted a few print files that I no longer needed. I also deleted the CHK files created by the disk check repair. (many of them)
I put the card back in the printer, and resliced the job, and resent. (send now worked)
I disabled all camera recording options, hoping to reduce the write i/o load.
I restarted the resliced 9 hour print. Got i/o error after a few layers.
I pulled card and put back in pc. Ran H2testw.exe to do deeper analysis. Got: Error writing file ‘J:\9.h2w’, offset 0x9d00000.
Writing speed: 8.64 MByte/s
H2testw v1.4
I decided to reformat the card in the PC, since it would no longer mount at all (until formatted), so i just went ahead with an exFAT format (With Quick Format UNCHECKED-I wanted full sector testing and bad sector repair), knowing I would need to reformat again in the printer back to FAT32.
Interestingly, the 32GB card shows up with capacity of 64GB in the format USB drive window!!! Most likely a totally corrupt partition table using 64GB as a default. Copilot AI says this might be a sign that the card was actually SMALLER that 32GB and actually DID FILL UP due to the massive camera recordings. (a counter-fit card shipped in a new Bambu printer???)
format failed. card is toast.
Using a 8gb card i had. formatted in printer. so far so good.