Exploring Bluetooth & iBeacons – from software to radio signals and back.

This is the story of my Bluetooth hacking adventures. If you want to start with BTLE hacking right away, feel free to jump over to the 2nd (technical) part, otherwise read on as I share my BT exploration findings and thoughts. NOTE: When I refer to BT I also mean BTLE, which as everyone already […]

Ziggy’s Embedded BTS

It started as a small challenge. “I challenge you to make a Base-Station image for embedded devices” dared me my friend Simone, and I decided he is right and it’s time for a BladeRF Base-station image targeting the armhf architecture. While googling on the subject, I found others struggling with same problems I did, and I also […]

From Bochs to chroot

I used Bochs at 2004 for some projects of mine since that was the only way to emulate a complete PC back in the days. The performance was horrible, hardly usable, since all CPU & BIOS commands were emulated in software. Even on the best of hardware, performance was lacking. Fast forward a few years, […]

Summarizing 2 weeks of Android hacking

I think it’s time to summarize my past two weeks of Android hacking – It’s been fun. Hacking Android proved to be a world of endless possibilities, and just like in the Linux-Desktop distributions arena, it’s LEGO – ie, you can customize, change scripts, packages, filesystems, the whole. LEGO. There is so much information available […]

Modifying initramfs for JHJP4 (and any other version)

In this tutorial i will guide you how to modify an existing initramfs with your own changes – and inject it back into the zImage file, ready to be distributed and flashed. I assume the followings: (a) You are familiar with Linux CLI. (b) Your zImage file is extracted and in your current directory. WARNING: […]

Latest Samsung ROM update – JHJP4/JHJP5

So, Samsung just released a new rom (more info here) and lo and behold – its an Israeli ROM! A 2.2 Froyo baked, Hebrew based ROM. Since i still know that all samsung updates are for their Windows based tools, i doubt this update is for me. However, I still downloaded it. And looking inside […]

Looking into param.lfs file

The param.lfs file looks like a simple container for some jpg files. I couldn’t mount it, so i wrote a simple script to extract those jpg files, just so i can look at them. Here are the jpg files i found on the param.lfs: and here is the script i’ve used to extract them: usage: […]