Board

ESP32 Dev Module

Device Description

DevKitC, USB-C

Hardware Configuration

Nothing, just the board itself.

Version

latest stable Release (if not listed below)

Type

Task

IDE Name

Arduino IDE

Operating System

Windows 11

Flash frequency

40 Mhz

PSRAM enabled

no

Upload speed

115200

Description

Hi,

I’m using an ESP32 Elegoo board. It works fine with simple sketches (e.g., Serial.print, toggling a GPIO LED).
However, whenever I try to enable Wi-Fi or Bluetooth, the board goes into a bootloop (keeps restarting).
This board worked totally well the first day when I received it and then not anymore.

✅ What I’ve already tried:

Different USB cables

Different USB ports and even external power supply via adapter

Simple code without Wi-Fi/Bluetooth → works fine

Any code using Wi-Fi or Bluetooth → bootloop

❓ My questions:

Could this be a hardware issue with the Elegoo ESP32?

Or maybe a software/config issue (wrong board selection in Arduino IDE, missing libraries, etc.)?

Could it be a power supply problem when using radio features?

Any help or suggestions would be greatly appreciated!

Sketch

#include <WiFi.h>
const char* ssid = "MonESP32"; 
const char* password = "12345678"; 
void setup() {
 Serial.begin(115200);
 delay(1000);
 WiFi.softAP(ssid, password);
 Serial.println("Point d'accès Wi-Fi créé !");
 Serial.print("Nom du réseau : ");
 Serial.println(ssid);
 Serial.print("Mot de passe : ");
 Serial.println(password);
 Serial.print("Adresse IP du point d'accès : ");
 Serial.println(WiFi.softAPIP());
}
void loop() {
}

Debug Message

rst:0x3 (SW_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:4980
load:0x40078000,len:16612
load:0x40080400,len:3480
entry 0x400805b4
ets Jul 29 2019 12:21:46
rst:0x3 (SW_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:4980
load:0x40078000,len:16612
load:0x40080400,len:3480
It displays this in the serial monitor forever until I disconnect my board.

Other Steps to Reproduce

This sketch and every programms work on my other ESP32 (same order, same box).

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.