ESP32 Forum

I have a similar issue after flashing where I can't connect with the Espruino IDE after a flash and The delay - close - delay update does not work.

in the Espruino ide I get:
and in the console:
However, If I flash instead of:
esptool.py --chip esp32 --port COM3 --baud 921600 --before esp32r0 --after hard_reset write_flash -z --flash_mode dio --flash_freq 40m --flash_size detect 0x10000 ../../espruino_esp32.bin

but with soft_reset:
esptool.py --chip esp32 --port COM3 --baud 921600 --before esp32r0 --after soft_reset write_flash -z --flash_mode dio --flash_freq 40m --flash_size detect 0x10000 ../../espruino_esp32.bin

I get a warning:
But I can then go into the Web ide directly.

As this stage I'm not confirmed if it is booting into the new firmware or the old.

Hmm, inserting the pauses totally fixed it for me.
There is probably a hardware bug in all SiLabs devices manufactured before 1639:

Silicon Labs is also pleased to announce the following Errata update:
The CP2102N A01 errata includes the following errata for A01 revision. These issues will be solved in
A01 devices with a date code of 1639 or later.
1. Systems using CP2102N may see devices fail to respond until a power-on reset. If a device fails
to respond properly, remove and replace power until the device properly responds. Devices with a
date code of 1639 or later will not have this issue.

(see http://community.silabs.com/t5/Interfac ... 6137#M3980)

Theres a new driver available: http://community.silabs.com/t5/Interfac ... alse#M4104
Fixed it for me.