ESP8266 Community Forum

- Mon Mar 14, 2016 3:00 pm #43139 Hi,

I just tried to install esp-open-sdk on a new machine. But the download of the SDK-Zip from espressif returned a strange result. I get a broken .zip file.

$ unzip -lv ESP8266_NONOS_SDK_V1.5.2_16_01_29.zip
Archive: ESP8266_NONOS_SDK_V1.5.2_16_01_29.zip
warning [ESP8266_NONOS_SDK_V1.5.2_16_01_29.zip]: 9501 extra bytes at beginning or within zipfile
(attempting to process anyway)
error [ESP8266_NONOS_SDK_V1.5.2_16_01_29.zip]: start of central directory not found;
zipfile corrupt.
(please check that you have transferred or created the zipfile in the
appropriate BINARY mode and that you have compiled UnZip properly)

The md5sum is 347f232eb9310c85181b1cb01acae4a9 which differs from the download I had the last time. I tried different internet connections with the same result. Can anybody confirm this? This is the post on espressif forum.

http://bbs.espressif.com/viewtopic.php?f=46&t=1702

- Mon Mar 14, 2016 3:24 pm #43140 Yup, same problem here

esp8266 otb-iot software - https://github.com/piersfinlayson/otb-iot
esp8266 otb-iot documentation - https://otb-iot.readthedocs.io/
esp8266 related blog - http://www.packom.net/

- Mon Mar 14, 2016 3:30 pm #43142 I've got the same trouble and I try the older versions with no result.

- Mon Mar 14, 2016 6:38 pm #43150 I am getting a corrupted download for any file that I try to download from Espressif, so I guess they're having some technical trouble. Very annoying as I've finally sat down to start working on my project but now can't get the latest firmware! Are the files mirrored anywhere? Failing that, can some kind soul provide the 0.50 AT firmware (or whatever the latest version is that I can use with my ESP-01 and its limited flash space) and the utility to upload it onto the ESP8266?