How to Enter Flash Mode on ESP07 with DM-101 Board for ESPHome Upload?

Hello, I have an ESP-07 board on DM-101 Serial Wifi
https://pl.aliexpress.com/item/32845872410.html
onto which I am trying to upload ESPHome software using ESPHome Flasher.
I am using a USB-UART converter (drivers installed, flasher correctly detects the converter on COM8). The error that comes up:

Unexpected error: ESP Chip Auto-Detection failed: Failed to connect to Espressif device: No serial data received.

My uncle said that you need to put the ESP into flash mode, but all the available ways that I have found involve a bare ESP board, some sort of PIN wipe etc. I haven't found info on how to enter flash mode on this particular version of the DM-101. will you direct me?

I should add that I have no experience with AT commands. On the ESP I always uploaded ESPHome and continued to do the configuration there, but before that I had nodemcu type boards, so it was easier. This is where I unfortunately fell down....

mobopx wrote:

I couldn't find info on how to enter flash mode on this particular version of the DM-101.

The switch named "SWITCH" It is drawn on the board how the ESP is to be set in programming mode, I mean left.

@khoam
I'm already sitting on this for 3 hours switch I noticed right away, attempts were made on both PROGRAM and UART

Quote:

the ESP is to be set to programming mode, i.e. left

.
It is important that already before the supply voltage is switched on.

@mobopx And how do you power this module?

@khoam
12V power supply to base board from nodemcu, then power to ESP07 from 3.3V + GND pins. The LED on the ESP07 lights up red.
.

inot wrote:

Quote:

the ESP is to be set in programming mode, that means left

.
It is important that already before the supply voltage is switched on .

.
Not necessarily. It is important that the ESP is in programming mode before the firmware upload starts.

khoam wrote:

Not necessarily. It is important that the ESP is in programming mode before you start uploading firmware.

This is what I had in mind (due to the topic title) but now I see , that this connection error also occurs in UART mode.

@khoam
I'll also add that the converter works fine (I did a flash of ESPHome on ESP01 a while ago - it went without a stutter).

When I switch to UART mode, ESP07 broadcasts its AP (ESP_xxx), but when I connect and enter ip 192.168.4.1 it shows that the page was not found.

Maybe they swapped the TX and RX pin descriptions?

mobopx wrote:

ESP07 flashes its AP (ESP_xxx), but after connecting and giving ip 194.168.4.1 it shows that the page was not found.

If the ESP has not been previously "flashed" this is normal behaviour. Apart from the factory-set STA mode, IP address and WiFi network name, there is nothing else.