Hello all,
unfortunately I have the problem that I can’t get any programming on a newly purchased Lora32 V2 board.
All the advice I have already read here is unfortunately not getting me anywhere, as there is no complete documentation on the subject. At least not here in the forum.
Every time I try to load a program I get the error message:
A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header
I have already tested the way described several times with RST and PRG button as well as bridging of pins. I have tested the whole thing on 3 different computers, with different hardware and different operating systems and also more than 10 USB cables.
It does not work. 
Other ESP8266 modules and also Arduino UNO systems can be programmed without any problems.
I made a screenshot to show you that I have activated the boot mode, selected the correct board according to the documentation and I still try to upload only the Factory_Test_Wifi_LoRa32_V2.
Put the board into boot mode using the PRG button at startup
15:36:02.200 -> ets Jul 29 2019 12:21:46
15:36:02.200 ->
15:36:02.200 -> rst:0x1 (POWERON_RESET),boot:0x1 (DOWNLOAD_BOOT(UART0/UART1/SDIO_FEI_REO_V2))
15:36:02.200 -> waiting for download
Error message during upload
Der Sketch verwendet 668858 Bytes (51%) des Programmspeicherplatzes. Das Maximum sind 1310720 Bytes.
Globale Variablen verwenden 40688 Bytes (12%) des dynamischen Speichers, 286992 Bytes für lokale Variablen verbleiben. Das Maximum sind 327680 Bytes.
esptool.py v2.6
Serial port COM3
Connecting…………………____
Beim Hochladen des Sketches ist ein Fehler aufgetreten
–
A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header
Boardinformation
WiFi LoRa 32 (V2), Disabled, 240MHz (WiFi/BT, 921600, None, REGION_EU868, None on COM3
Driver
Does anyone have any ideas or have already been able to solve the problem?
Would be happy about constructive feedback.