ESP32S3 rebooting when connecting the USB cable

[Masaho93]

I have a PCB board that runs an ESP32-S3-WROOM-1 module. The board has its own chargeable battery system. I won't post the code I'm using because this issue occurs with any code I've tried, so I suppose it's not a software problem. To make things a little easier to understand, my code sends commands to a sensor. According to these commands, the sensor provides a response to the code, which reads the response and performs various actions with this data later.

The issue is that when I turn on my board and connect the USB, the program starts normally. I can see the debug response on the terminal (I'm using the Arduino IDE), and everything works properly. If I remove the USB, the code continues running (as it should; I have other means to verify that the code is working). However, when I connect the USB cable again, the ESP32-S3 resets, showing the same log it displays when I first start the program:

ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0x1 (POWERON),boot:0x9 (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fce3808,len:0x44c
load:0x403c9700,len:0xbe4
load:0x403cc700,len:0x2a68
entry 0x403c98d4

I was looking for an answer and found a very similar problem at: viewtopic.php?t=32490

Is this an error in the architecture of the ESP32-S3 itself? Because I've been working with this code in my job for some time, and a couple of months ago, we had the old version of our PCB board that used a different ESP32, and this error didn't occur.

[jatkins2431]

Had the same problem. Turns out, my serial terminal was open! Closing the terminal resolved the problem. You can also test this by using a USB cable with only power lines.