Vincent Hsu vhsu

Fixing Samsung UE40D5720RS Boot Loop with a Simple Ice Cube Hack

If you have a Samsung Smart TV (model UE40D5720RS) stuck in an endless boot loop — showing HDMI or the Smart TV logo and then restarting — you're not alone. This issue is often caused by NAND flash memory degradation, which prevents the firmware from being read correctly at boot.

Quick Fix That Actually Works

Place an ice cube wrapped in cling film directly over the main NAND flash chip (labeled IC1300) on the TV’s mainboard before powering it on. Cooling the chip stabilizes its read operations just enough to let the TV boot normally.

Why It Works

Using Triggers on New User Signup in Supabase

Supabase allows you to create database triggers that execute automatically when a new user signs up. This guide demonstrates how to set up a trigger to add initial data (e.g., credits) for new users.

Prerequisites

A Supabase project with authentication enabled.
Familiarity with SQL and Supabase's auth.users table.

How to Quickly Resize Images for Email Using Microsoft PowerToys

Introduction

Microsoft PowerToys is a free utility that lets you resize images directly from Windows Explorer with just a right-click. It's perfect for preparing large images to be sent via email without needing to open a separate app.

This guide shows you how to install PowerToys, enable the Image Resizer feature, and use it to resize images quickly.

Step 1: Install Microsoft PowerToys

check https://github.com/KeithGalli/NumPy/blob/master/NumPy%20Tutorial.ipynb and https://www.youtube.com/watch?v=QUT1VHiLmmI&t=2134s

import numpy as np

x = np.array([[1,2,3],[3,4,5],[1,2,5]])

	"""
	Generate Image Sitemap for a Single HTML Page

	This script reads an HTML file, extracts all the image URLs from the <img> tags, and generates an XML sitemap compliant with Google's image sitemap protocol. The generated sitemap can help improve the visibility of images in search engines.

	Usage:
	- Ensure you have the 'beautifulsoup4' package installed: `pip install beautifulsoup4`
	- Set the `html_file` variable to the path of your HTML file.
	- Set the `page_url` variable to the URL of the page where the images are located.
	- Run the script to generate 'sitemap.xml' containing the image sitemap.

	{% comment %}

	Instructions:
	- Create a blank page called 'Google Base Product Feed'and save it
	- Open that page for editing and select 'page.google-feed' from the page template selector
	- Add a brief site description to the meta-shop-description snippet
	- The feed url should now be available at http://www.yoursite.com/pages/google-base-product-feed
	- validate your field at http://validator.w3.org/feed/
	- when ready, submit your feed at http://base.google.com

	import torch
	import torch.nn as nn
	import torch.optim as optim
	import torch.nn.functional as F
	from torchvision import datasets, transforms
	from torch.utils.data import DataLoader

	# Step 1: Load and Preprocess the MNIST Dataset
	# Define transformations for the training and testing data
	transform = transforms.Compose([

	{
	"nbformat": 4,
	"nbformat_minor": 0,
	"metadata": {
	"colab": {
	"provenance": [],
	"authorship_tag": "ABX9TyMr5e9IsCxg3q+sApsIAZ0/",
	"include_colab_link": true
	},
	"kernelspec": {

	"""
	Script to Remove Duplicate Images from a Folder

	This script identifies and removes duplicate images within a specified folder.
	It uses perceptual hashing to generate a unique fingerprint for each image,
	allowing it to detect duplicates even if the files have different names or formats.

	What the Code Does:
	-------------------
	1. Scans the specified folder for image files (supports common formats such as

	from PIL import Image

	def add_border(input_image_path, output_image_path, border_size=100):
	# Open an existing image
	img = Image.open(input_image_path)

	# Get the size of the original image
	width, height = img.size

	# Make the new image size as the original size plus the border