Installation method using esptool unclear

Hello. I tried to install it on a ttgo t-beam but the installation using esptool was not clear to me. I used esptool before with other esp32 projects and their firmware files and that always worked fine.
The t-beam is not working at the moment (no screen output).
I have download the 4 files for the t-beam from here: Release OpenMQTTGateway v1.8.0 路 1technophile/OpenMQTTGateway 路 GitHub

I adapted from here (Option 2) Upload ready-to-go binaries | Theengs OpenMQTTGateway v1.8.0
the command:
esptool.py --before default_reset --after hard_reset write_flash -z --flash_mode dout --flash_size detect 0x1000 ttgo-t-beam-bootloader.bin 0x8000 ttgo-t-beam-partitions.bin 0x10000 ttgo-t-beam-firmware.bin

Is this correct or did i something wrong? What should i do with the libraries .zip file?