Reading 1.8V flash with Raspberry Pi

Use Logic Level Shifter to read the flash operating under 3.3V.

Posted by Gyul on April 13, 2024

HTB Cyber Apocalypse 2024 Hardware Challenge Writeup

Check out how the Hardware challenges are made. And how to Solve.

Posted by Gyul on March 20, 2024

Transforming Smart Plug IoT - 1

If there's no function what I want, I just make it can.

Posted by Gyul on November 15, 2022

Phillips Monitor Teardown & Analysis

Let me see what's inside this thing..

Posted by Gyul on October 07, 2022

Now power your smartphone with DC adapter. Not Battery.

Use your broken smartphone as a stable server!

Posted by Gyul on August 06, 2022

Making a Wifi light switch based on the ESP-01S (ESP8266) module

No need to get out of bed to turn off the lights

Posted by markminchoi on June 12, 2022

IP Camera Firmware Extraction

Extracting IP Camera Firmware and get a root shell

Posted by Gyul on May 19, 2022

Changing terrible music of eye massager in hardware way

Eye massager teardown and modify eye massager flash data

Posted by Gyul on January 08, 2022

Trying to read spi nand flash with raspberry pi

spi nand access with spidev

Posted by markminchoi on November 27, 2021

Extracting firmware with a serial port

Extracting firmware without os access

Posted by markminchoi on November 13, 2021

Fault injection attack with PIC and FPGA

Testing voltage glitching attack by making simple circuit

Posted by Gyul on November 13, 2021