Could not enter raw repl in fresh install

[mflmartin]

Hi!

This thing is weird. I had been using a module (AZDELIVERY ESp32), flashed it, and I was pushing python files without any issue using pyboard.py. At one moment this module became unresponsive, and I started getting this error:

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python pyboard.py --device COM4 test.py

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could not enter raw repl

So I did 4 things:

1. I erased flash memory and reflashed it with esp32-idf4-20210202-v1.14.bin, erasing all the files (in case there was something stuck)

2. I tested in that module, again, and I can not even use uPyLoader or pyboard.py to push files...

3. I changed and tested different ports in my pc and microusb cables, just in case. Nothing.

4. So I changed to another module, brand new. Extracted from it's plastic bag. Erased memory, flashed the bin, and the same thing is happening. Which makes no sense. I don't know what to test anymore.


When I issue the "mode" command in Windows I get this: Which seems "ok" unless I am missing something.

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Status for device COM4:
-----------------------
    Baud:            115200
    Parity:          None
    Data Bits:       8
    Stop Bits:       1
    Timeout:         OFF
    XON/XOFF:        OFF
    CTS handshaking: OFF
    DSR handshaking: OFF
    DSR sensitivity: OFF
    DTR circuit:     OFF
    RTS circuit:     OFF

Any ideas? (Thanks in advance!!)

[mflmartin]

Also, weird enough, with uPYLoader, I can see the boot.py files, it connects to the device, but when I try to see that file with uPYLoader, this program crashes and becomes unresponsive.

[jimmo]

I'm not quite sure what's happened here...

Can you confirm how you erased flash memory (assuming it was the "esptool.py erase_flash" command?).

When the board is in this state are you able to connect to it just with a regular serial console? e.g. TeraTerm or Putty?