ESP8266-01E is not responding after successful flash I have flashed an ESP8266 with the ESP8266 flash downloader that said my flashing had succeeded.
But when I sent an AT command from the serial monitor it didn't respond and the TX/RX LED from the ESP8266 didn't respond either. I checked all baudrates from 300-200000, but nothing.
I was using CH340 USB to TTL for flashing wired like this:
USB -&gt; ESP8266
3,3v -&gt;CH_PD and VCC
GND -&gt; GND and GPI0 (only when flashing)
TX -&gt; RX
RX -&gt; TX

I was flashing to downgrade the firmware; the default firmware from shop was SDK 1.5.4, AT VERSION 1.1.0.0.

I have been frustrated with this, because this is my second module.
SOLVED
My module is esp8266-01S, i need to set the SPI MODE to DOUT, BAUDRATES=115200, SPI SPEED 40MHz and the software is NODEMCU FLASHER.
The important keyword is &quot;DOUT&quot;.
I have been flash many times but with not DOUT SPI METHOD. I thought change it will not fix that. I was using QIO SPI MODE but it doesn't work.