ESP8266 Community Forum

- Sat Jul 18, 2015 12:14 pm #23580 I've flashed with esptool.py but the same weird message, the led keeps blinking, please refer to picture

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- Sat Jul 18, 2015 12:38 pm #23585 I don't have much other clues ... (I've even copied/pasted your sketch as is, and I don't have the issue)
Maybe you can try to wipe the whole flash : esptool.py --port /dev/ttyUSB0 erase_flash
Otherwise, maybe your Arduino IDE installation has a problem and/or your ESP module itself (do you have spares ?)

- Sat Jul 18, 2015 9:06 pm #23606 I guess the problem with module, and I've ordered a few more, thank anyway, man

- Sat Jul 18, 2015 9:48 pm #23608 I've flashed the chip with IOT.bin that is original firmware for the board to test LEDs onboard with IOT manager app. It shows some message below: but no more wdt reset message.

We have a POST request.
IO: 16 HIGH
webserver's 192.168.4.100:59921 err -9 reconnect
We have a POST request.
IO: 16 LOW
webserver's 192.168.4.100:52874 err -9 reconnect
T:2,bf0,-2
We have a POST request.
IO: 16 HIGH
webserver's 192.168.4.100:58702 err -9 reconnect
We have a POST request.
IO: 16 LOW
webserver's 192.168.4.100:41475 err -9 reconnect
We have a POST request.
IO: 2 LOW
webserver's 192.168.4.100:50476 err -9 reconnect

Meaning that the board is working with IOT.bin firmware.