✨ Ender 3 S1 (#677)

config/examples/Creality/Ender-3 S1/README.md

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+# Ender 3 S1
+
+## Flashing Firmware
+
+The bootloader which handles flashing new firmware on this board remembers the last filename you used.
+
+Therefore, to flash the compiled firmware binary onto the board you must give the "`firmware.bin`" file on the SD card a unique name, different from the name of the previous firmware file, or you will be greeted with a blank screen on the next boot.
+
+## Updating the Display
+
+Currently there is no Marlin-specific firmware available, so flash the latest official firmware to the display. There are some minor graphical glitches but the display is very usable.
+
+Download the latest Ender 3 S1 firmware [from www.creality.com/download](https://www.creality.com/download) and flash as follows:
+
+- Format an SD card using the FAT32 filesystem with 4K cluster size.
+- Copy the `private` folder to the microSD card and insert the card into the slot on the back of the display unit.
+- Power on the machine and wait for the screen to show a filled progress bar and show "Update finished!". The display will reset shortly after displaying this message.
+- Power off the machine.
+- Remove the SD card from the back of the display.
+- Power on to confirm a successful flash.