Analyzing the PSX emulator on the Xperia Play

I’ve been playing around with the new Xperia Play (well, with the speed of these Android phone releases, it’s already old). I’ve decided it would be a challenge to try to figure out how the PSOne emulator works and eventually be able to inject any ISO and play it with Sony superior PS1 emulator. Just to be clear, nothing is done yet, and this is just a technical post to aid whoever else is trying to do the same thing. Also, because information should be free. Continue reading

Porting Kindle 3.1: Part 2 – Update encryption


So, on the topic of Kindle (I swear, it’s becoming an obsession). I am currently in the process of porting the Kindle 3.1 software to Kindle 2 and DX. I will make a series of posts describing my process while describing how various parts of the Kindle operating system works. Now I’ve tested 3.1 on my Kindle 2 and it works perfectly fine. All features work (audio, TTS, book reading), and the new features also work without major slowdowns (new PDF reader, new browser, etc).

Where’s part one you ask? Well, part one was getting the 3.1 OS to work on the Kindle 2, the rest is making an easy installer. That is a long story that involves custom partition tables, manually creating tar files (checksums are a pain), remote debugging, and more. It’s a lot of stuff and most aren’t very useful because nobody should have to repeat the process, which is why I’m creating a easy to use installer. If I have time one day, I may write it down for documentation purposes. Continue reading

Recovering a formatted or corrupt Kindle 2

One day, while playing around with a Kindle 2, I accidentally deleted the /lib folder. Oops. Now, no command beyond “ls” and “rm” work. If this was a computer, I could have simply inserted a installation DVD and copied the files over, but this was an eBook reader, and I was in for a world of pain. This was a month ago, and I’ve finally recovered the Kindle. I’m posting what I did online to save anyone else who’s in the same boat a ton of time. This tutorial is only designed for the Kindle 2, but it MAY work for the DX. It will NOT work for the Kindle 3, but directions should be similar. Continue reading