It was printing fine last week.
I walked over to shut it off so I could change to the 0.8mm hot end.
Made the swap and flipped the power back on.
I heard the fans buz for a second but the screen never came one.
Turned it off and on again… same thing fans buz for a second but no screen.
I put the 0.4mm hot end back on since it was the only thing I did since the last successful print but it didn’t change the screen status.
Check Orca and handy, the printer is not connected to the network.
Unplugged it for 5 minutes or so… same issue… no screen, no network.
I have had this card in the printer since February of last year.
With the SD card pulled, I flipped it back on and suddenly the screen works and it’s magically back on the network.
All functionality seems to have returned. I have to scrounge up the original or find another micro SD to fully test the printer.
Has anyone ever seen a micro SD card randomly burn up?
Wow… Indeed, that is damage I’ve only seen during power surges. You wouldn’t by chance have had a thunderstorm happening around that time? It’s long shot because the Power Supply should have shielded it from that kind of surge and even if it wasn’t the P/S should have blown a fuse first.
Based on the location, that doesn’t look like it’s anywhere near the Voltage or Ground pins. The only reason why that might be notable is because if it was an overvoltage scenario one would expect damage to also be on power or ground, pins 4 or 6, and there is clearly no damage. This would lead me to believe a defect in the card itself.
There are some large traces in that area and what looks like resistors or capacitors. I didn’t think the circuit went out that close to the edge but apparently it does. Check for wear along the edges. I’ll be checking mine form now on.
By the way, is this the printer you extracted power off the MB for lights?
No power from the MB.
I have the LED driver output connected to an SSR which switches on my more current intensive LED setup. Those LEDs have an external power supply.
And this setup still works (without the card in place) and the printer was not running nor were the LEDs on, so I don’t think they are related.
Purchased the printer in January of 2023. Swapped out factory SD card in February of 2023.
I’d say moderate hobby usage. Easily several hundred hours of printing time on it.
I’m guessing dampness got in. It looks like the cards are laminated, not encapsulated, and looking at the edge of one of mine I can clearly see the edge of what looks like an aluminium heat sink layer. Dampness would work it’s way in, over time, not helped by heat cycling. I guess it’s a trade off - size/cost/reliability. In particular, it is at the location where the latch is rubbing.
Oh, I apologize! I was thinking you had a mini (like me). I’m very glad to know you’re up and running again without an expensive failure. I have a P1S ordered too.
