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....

@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.

@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.
.

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.