ESP8266 Community Forum

- Mon Jan 08, 2018 8:02 am #72965 Hello

I recently purchased a NodeMCU V2 Development board with ESP8266 12E, 4MB, here's the link :
https://www.ebay.co.uk/itm/NEW-NodeMcu- ... 1983263238

The original factory fitted Firmware was shown as being the following :

AT Version 1.3.00 (July 142016)
SDK Version = 2.0.0 (5A875BA)

Question is, where can i obtain the factory programmed DEFAULT BIN file for this module?
Surly it must be available?

I've seen the cloud build tool but don't have a clue what i'm doing!
I just wish to re-flash the module with it's original BIN file using : NodeMCU PyFlasher 2.2

Can anyone help please?
Thanks
LiveWire

- Mon Jan 08, 2018 3:25 pm #72977 The AT version is most likely from Espressif's SDK&Demos package from http://espressif.com/en/support/download/sdks-demos ESP8266 NONOS SDK V2.0.0 20160810

- Mon Jan 08, 2018 8:13 pm #72984 Hi Dev

Thanks for replying.
Yes that's the closest i can get, it's got me out of trouble so thank you.

There seems to be files missing from version 2.1.0

In esp8266_nonos_sdk_v2.0.0_16_08_10.zip, the BIN file has the AT folder and within that is the NO BOOT folder containing the two EAGLE bin files, this is also stated in the readme file.

However in the latest version ESP8266_NONOS_SDK-2.1.0.zip, it does not contain any EAGLE bin files even though it is stated in the readme file.

So it was not possible to flash version 2.1.0 as both eagle files were missing.

Thanks
LiveWire

- Tue Jan 09, 2018 1:35 am #72989 The 'noboot' folder was removed between 2.0 and 2.1 (wouldn't know why): https://github.com/espressif/ESP8266_NO ... 1.0/bin/at

https://frightanic.com/
https://nodemcu-build.com/
https://github.com/marcelstoer/nodemcu-pyflasher