We're working on the ESP32 SDK now and due to the changes in memory map and CPU interaction, it's diverged so much from the ESP31 that I don't see a backport happening any time soon. Am I reading this correct in that the next SDK version will not be compatible with the existing ESP31B modules then?...

Just to finalise my apparent monologue here: The actual flash chip was defective. Quite possibly because it had been fed 1.8V due to the aforementioned short. After lifting a flash chip from an ESP12 module and using that as a replacement I've finally been able to flash this ESP32. Better documentat...

So one of the issues was that this module had a short between pin19 VDDPST and pin18 MTDI. It turns out that if you pull MTDI high during reset, it makes the ESP32 use 1.8V I/O towards the SPI chip (possibly elsewhere too), rather than the regular 3.3V. This explained why the flash chip was never ge...

Hi, Did you ever resolve this problem? I'm finding myself in the same situation where I can read the MACs successfully, but any command involving the flash chip times out. Would love to find a resolution... I've tried three different esptool.py versions, plus augmenting the SDK-provided one to try t...