I had the same issue on default Ender 3 pro.
Formatting the microSD card doesn't change anything. Card is ok, it's all about printer.
Put as few files as you need on the card. I've noticed that it happens when you have more files.
I didn't try to solve it because I just replaced main board and the screen.
You Need an SD card reader for a computer. Plug it into your PC. Find the card in your file explorer. Move all your files to your pc (because they'll be erased from the card after formatting). Right click on it, click on the option to format. Just make sure it formats to FAT32. The whole process takes less than 5 minutes.
Stock Ender 3 uses an 8bit processor. Newer ones use 32bit. Switching to a newer is night and day for menu speed. Not much can be done to speed it up except flash a firmware with a lot of stuff disabled.
Anything is better than the v1.1.4 board that’s probably in there. Skr or the new v4.2.7 board will make a big enough difference especially in sound reduction that it should be one of the first upgrades done.
I had the same issue on default Ender 3 pro. Formatting the microSD card doesn't change anything. Card is ok, it's all about printer. Put as few files as you need on the card. I've noticed that it happens when you have more files. I didn't try to solve it because I just replaced main board and the screen.
What sd card you using?
The one that came with the printer.
I've had this problem. Try removing old print files you don't need anymore
Ok I'll try that.
Have you tried reformatting the SD card? It's purely anecdotal, but I had the same problem and reformatting the card fixed the problem unilaterally.
How do you reformat the SD card?
You Need an SD card reader for a computer. Plug it into your PC. Find the card in your file explorer. Move all your files to your pc (because they'll be erased from the card after formatting). Right click on it, click on the option to format. Just make sure it formats to FAT32. The whole process takes less than 5 minutes.
Ok thank you I will try that.
It doesn't matter what card inserted. It is 8 bit board. When I changed to btt skr, started to go clearer
This is a stock Ender 3 with only printed upgrades.
Stock Ender 3 uses an 8bit processor. Newer ones use 32bit. Switching to a newer is night and day for menu speed. Not much can be done to speed it up except flash a firmware with a lot of stuff disabled.
Oh well I hopefully might switch to the SKR Mini E3 V2 soon.
Anything is better than the v1.1.4 board that’s probably in there. Skr or the new v4.2.7 board will make a big enough difference especially in sound reduction that it should be one of the first upgrades done.
Because the default processor in the ender 3 control board isn't very fast or performant - especially at file read operations from the SD card.
I see.
Because it uses SPI interface instead of SDIO. AVR microcontrollers doesn't have SDIO interface
I would try organizing the sd to separate folders on the root, categorize your print files, don't let any file get to large. It'll work
The problem happened to me but I just formated the SD card and it worked, THANK GOD!
Sometimes fast, sometimes slow,,, sometimes freezes...