ESP32-S3 continuous reboot after flashing larger firmware

This worked for me. I replaced the code of the lcd test example of waveshare wiki ESP32-S3-LCD-1.28-Test.ino. After hours of trying, I was able to write the screen with no rebooting. But in Arduino, hope I gives you a hint.

Now I am trying to solve reboot issues while combining this code with wifi functionality. Standard wifi codes alone works perfect but combined with screen reboots.

 //code for replace as it needs the includes files
#include <Arduino.h>
#include "LCD_Test.h"

// --- Variables ---
UWORD Imagesize = LCD_1IN28_HEIGHT * LCD_1IN28_WIDTH * 2;
UWORD *BlackImage = NULL;

void setup() {
  Serial.begin(115200);
  Serial.println("\n=== PRUEBA SIMPLE LCD 1.28 ===");

  // --- Inicializar módulo ---
  if (DEV_Module_Init() != 0) {
    Serial.println("❌ Error al inicializar GPIOs");
    while (1);
  } else {
    Serial.println("GPIO Init OK");
  }

  // --- Desactivar PSRAM (si está activa en menú) ---
  // No usamos ps_malloc aquí
  BlackImage = (UWORD *)malloc(Imagesize);
  if (BlackImage == NULL) {
    Serial.println("❌ Error: sin memoria para imagen");
    while (1);
  }

  // --- Inicializar pantalla ---
  LCD_1IN28_Init(HORIZONTAL);
  LCD_1IN28_Clear(WHITE);

  // --- Crear buffer de dibujo ---
  Paint_NewImage((UBYTE *)BlackImage, LCD_1IN28.WIDTH, LCD_1IN28.HEIGHT, 0, WHITE);
  Paint_SetScale(65);
  Paint_SetRotate(ROTATE_0);
  Paint_Clear(WHITE);

  // --- Dibujar mensaje de prueba ---
  Paint_DrawString_EN(40, 80, "Pantalla OK", &Font20, BLUE, WHITE);
  Paint_DrawString_EN(60, 120, "Test basico", &Font16, BLACK, WHITE);
  LCD_1IN28_Display(BlackImage);

  Serial.println(" Test mostrado en pantalla.");
}

void loop() {
  // Alterna color de fondo cada 2 segundos
  static bool invert = false;
  invert = !invert;
  if (invert)
    Paint_Clear(0xFFFF); // Blanco
  else
    Paint_Clear(0x0000); // Negro

  Paint_DrawString_EN(60, 110, "Pantalla viva", &Font20, RED, invert ? WHITE : BLACK);
  LCD_1IN28_Display(BlackImage);
  delay(2000);
}