Make Arduino Code work inside Custom ESP32 Wrover32 Module

[faizi968]

Hi there everyone,
I have made a custom PCB based on ESP32 WROVER32 Module. I want to burn Arduino Code inside the module. The sketch from the ESP32 BSP called "BLE_Server" uploads successfully but does not work. No BLE communication is initialized. Do I have to upload any bootloader inside the chip in order for the code to work? Please help.

[ESP_Dazz]

You shouldn't need to. The first stage bootloader is ROM code that is already inside the ESP32, and the second stage bootloader is part of the binary that you flash.

No BLE communication is initialized.

Could you be more specific as to what isn't working? For example, are you seeing any UART log output when resetting the chip?