Raspberry Pi Pico RP2040 Photo Frame Does Not Recognize SD Card

http://cdn.static.spotpear.com/uploads/download/diver/photopainter/Pico_ePaper_73.zip

Download the demo, unzip it, go to the mode0 folder and select a uf2 file, connect a Type-C data cable to the computer, and follow these instructions to reflash the firmware.

Remember to delete all other files from the SD card except for the 'pic' file.

Hi, thank you for the answer.

As stated, I already did exactly that. I used Mode 0, 1 hr uf2 file. Once the file transfers, the usb device disconnects automatically and then when I press Next I'm back to flashing screen.

You mean you have solved your problem？

No, I mean that I have flashed the firmware and the problem still persists. The screen flashes with the default image and I cannot get it to read from the SD card. To summarize:|

- The firmware is flashed

- The SD card is FAt32 formatted (it's the one included in the package) and it only contains the "pic" folder

- The "pic" folder contains the sample images in bmp 7-color dithered format

So is there a way someone can help me with this at all? I wrote support as well and have received no response so far.

When the 'next' button is pressed, test the following:

If the voltage at the transistor point is 4V after pressing the button, and the voltage at the diode point is around 0V,

it indicates a problem with the diode. It could be a cold solder joint or the diode might be soldered in reverse.

If the voltage at the transistor point is 4V after pressing the button, and the voltage at the diode point is also around 4V,

it indicates a cold solder joint on the chip.