Latest Espruino build for Esp8266

Hi, i would like to try this firmware but seems that

any idea?

D:\esptool>c:\python27\python "d:/esptool/esptool.py" --port COM3 --baud 115200 write_flash --flash_freq 40m --flash_mode qio --flash_size 32m 0x0000 boot_v1.6.bin 0x1000 espruino_esp8266_user1.bin 0x3FC000 esp_init_data_default.bin 0x3FE000 blank.bin
esptool.py v1.3-dev
Connecting...
Couldn't connect. [<class '__main__.FatalError'>; Timed out waiting for packet header]. Retrying...
Running Cesanta flasher stub...
Flash params set to 0x0040
Wrote 4096 bytes at 0x0 in 0.4 seconds (90.0 kbit/s)...
Wrote 462848 bytes at 0x1000 in 40.1 seconds (92.3 kbit/s)...
Wrote 4096 bytes at 0x3fc000 in 0.4 seconds (90.0 kbit/s)...
Wrote 4096 bytes at 0x3fe000 in 0.4 seconds (90.0 kbit/s)...
Leaving...

i get the first error, then the nodeMCU v1.0 is flashing and seems that write the fw. i tried also with the gui tool that i use to load the LUA fw and look like the same, seems written and then is not working.

I tried with version 1.6 of the loader and 1.4(b1) but same result.

when i connect to the serial i get only strange char... please any idea? :(