TI-Calc whiz Brandon Wilson made waves in the PS3 homebrew scene for the initial release of his adaptation of the PSGroove codebase for TI-84+ and TI-84+ Silver Edition calculators. He’s now expanded on that concept, adding a few nifty features that enhance usability into the mix.

With version 0.5, users can now opt to install a “hook,” allowing the USB-activated exploit to work its magic from any point in the calculator’s OS, essentially acting as a background process. Another highlight is the ability to load external stage 1 and stage 2 payloads, meaning you can now switch between the original jailbreak exploit and modified variants of it without having to recompile the application itself.

Additionally, support for marcan’s work-in-progress Linux bootloader known as AsbestOS is included. Catch the full lowdown straight from the readme after the break.

* Current status is displayed at the bottom of the LCD.

* In addition to the usual jailbreak method, you can now install and uninstall a “hook” that allows the jailbreak to work at any point in the calculator’s OS. This even works when the calculator is off; the PS3 will turn it on as it enumerates USB devices, and the calculator will shut off after about 5 minutes of inactivity (through the calculators’ existing Automatic Power Down feature).

* Now you can shove the calculator and the USB cable behind the PS3 and forget it’s there. External payloads are now supported. This means you don’t have to re-assemble the application to use a payload different from the official PSGroove one. These payloads are stored as calculator AppVars and selected through PS3JB’s options menu. These options are stored in an AppVar called PS3JBOPT, which can be archived to keep it safe from RAM resets. To convert from a binary file containing the payload data to an AppVar, you can use To8XV (a VB.NET 2.0 program) found here, or you can create your own.

* AsbestOS is now supported. The stage 1 and stage 2 payloads are specified in the options menu as above. To use the standard jailbreak exploit, select “None” as the stage 2 payload (which is the default).

PS3JB – PS3 Jailbreak for TI-84 Plus and TI-84 Plus Silver Edition [BrandonW]

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