ESP8266 Community Forum

- Wed Dec 09, 2015 4:00 am #36055 Hi,
For some reason i can't flash my board with esptool anymore, the board works, it runs the previous program (i can see serial output)
i run

Code: Select allsudo python esptool.py --baud 115200 --port /dev/tty.usbserial-A40081xF write_flash 0x00000 ~/Downloads/nodemcu-master-8-modules-2015-12-08-21-26-15-float.bin

then i get output

Code: Select allConnecting...
Erasing flash...
Writing at 0x00000000... (0 %)
A fatal error occurred: Failed to write to target Flash after seq 0 (got result 0x1, 0x8)

Any ideas what's wrong ?

- Wed Dec 09, 2015 4:50 pm #36095 This drives me crazy !

I know the FTDI is working fine sine i have another module that i can flash fine. It's just this module which i can't flash anymore. I even tried Arduino IDE which seems to flash but then i can see it's still the same code that's in the module so the flash did not do anything eventhough the led flashes there is data transmitted !!!

How is that possible ? Is is writing to a wrong place ? If so how in the h... can i wipe everything to get back to normal ?

donnib

- Wed Dec 09, 2015 8:27 pm #36118 Hey Guys!

I normally post these up in the firmware question but who knows. I am not 100% about posting things around here.

Are you able to connect the device to ESPlorer or putty?

EDIT: Some info from around Google that is just good to know..

What to do when ESP8266 will not flash (http://internetofhomethings.com/homethings/?p=538)