ESP8266 Community Forum

I've been flashing ESP07 and ESP01 modules properly, but had to reformat my computer this week. I've checked that my USB to serial adapter has the right drivers installed, reinstalled the Arduino IDE, and installed Python 2.7 and added it to my path. Unfortunately, I'm forgetting something in getting it set up, because I keep getting the esp_comm_memory_failed error.

I know my hardware setup works - I used it earlier this week to flash devices. GPIO0, 2, 15 are all set properly. It's just been so long since I initially got things working that I'm sure I've overlooked something in the installation.

Any suggestions?

Do you have any non-ESP boards you can try? (AVR Arduino)

Yes, I've confirmed that uploading to a Nano is working fine. The really strange thing is that I can see that the ESP and the USB to serial device are communicating. They do that little pulse of the TX lights at the same time, which is usually followed by the actual upload, but that's where the wheels are falling off. I can tell that the devices are actually communicating, that the ESP is in the proper boot mode, but for some reason, they're just not kicking off to the next step.

I'm sure you checked, but is the flash size set correctly? Maybe bigger that the module has.