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revk / ESP32-Faikin

ESP32 based module to control Daikin aircon units
GNU General Public License v3.0
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Unable to Flash Firmware on Faikin ESP32-S3-MINI-1 #357

Closed LowKey88 closed 1 week ago

LowKey88 commented 2 weeks ago

Hi,

I have a Faikin ESP32-S3-MINI-1 and I’m having trouble connecting it to WiFi. I suspect it might be a firmware issue and need assistance with flashing the latest firmware.

The board lacks a boot/reset button, and my attempts to jump the GPIO0 pin to GND to enter boot mode haven’t worked. Could you please guide me on how to correctly set this ESP into boot mode and flash the firmware?

Your help would be greatly appreciated.

revk commented 2 weeks ago

The GPIO0 works, but easier to use the USB pins.

LowKey88 commented 2 weeks ago

I'm getting this error

esptool.py -p /dev/tty.usbserial-83120 write_flash 0x0 Faikin-S3-MINI-N4-R2-bootloader.bin 0x8000 partition-table.bin 0xd000 ota_data_initial.bin 0x10000 Faikin-S3-MINI-N4-R2.bin esptool.py v4.7.0 Serial port /dev/tty.usbserial-83120 Connecting......................................

A fatal error occurred: Failed to connect to Espressif device: Invalid head of packet (0x05): Possible serial noise or corruption.

revk commented 2 weeks ago

Not sure what to say, ESP32-S3 has USB and those pins are they connected directly, there is nothing that can go wrong, and they worked for me when flashing the board before shipping.

Even more so if it actually shows up as a USB device for you!

LowKey88 commented 1 week ago

I wanted to update you that I was able to flash successfully, and everything is working now.

Thank you.