• I just tried flashing via the IDE again - here's what I did:

    • I checked the current version via IDE, and it reported AT version:, SDK version 1.1.2, Compile time Jun 17 2015
    • set GPIO0 pin to GND on the ESP101 board
    • clicked the firmware update button
    • noticed the IDE reported: syncing..
    • noticed the blue LED on the ESP01 flashing
    • after about 10s the IDE reported: "The Firmware update failed: No response to sync".

    BTW I have wondered about those later versions which appear to contain a boot loader and other code, so I guess the IDE is only loading the needed part.

    I'll keep looking into the later version as an experiment.


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