cant boot flashed esp8266

[michaelberg79]

I flashed both chips successful without any errors. but if i powering up the device theres happing nothing.
I inserted a serial print at start of setup(). i cant see any messages in serial monitor.

void setup() {
// Wait for the ATMEGA to be ready
Serial.begin(9600);
Serial.println("firmware started");
delay(2000);
...

if i am flashing the tasmota firmware the device booting without any problems. what could be the problem?

greets
Michael

[michaelberg79]

I also flashed espurna successfull, all booting fine, I flashed this firmware ota over espurna. with the same result. This firmware is not booting. I dont know how to do.
Do i need to modify some parameters in the platformio.ini?

[michaelberg79]

whats the spiffs size i have to choose? the data folder has a size of 75kb. In the platformio.ini is a spifff size of 64 given. maybe this is the reason i cant start the firmware.

[michaelberg79]

ok i could flash the device with following booting. i inserted the line within platformio.ini
board_flash_mode = dout
i thought board_flash_mode is the same as flash_mode

[Wihanh]

I also had this issue, your solution also fixed it for me thx.