You can fit a 2000mAh or even a 3000mAh battery (up from the original ~400-600mAh). The Result: Some modded iPods can now play music for over on a single charge. Conclusion: Why Bother?

iPod 4G (monochrome) / iPod Photo Vector: Firmware downgrade + bootloader injection (modified rockbox.ipod )

iPod Hacks 142: The Ultimate Guide to Modding and Modernizing Retro Apple Hardware

Interestingly, the iPodLinux project eventually received a tacit tolerance, as it did not enable music piracy — just Doom, Tetris, and a terminal.

The essential table-stakes hack. iPod Linux is an open-source operating system that, when used with the Podzilla interface, gives you a bare-bones Linux environment on your iPod. Why use it: It’s the foundation for many other advanced hacks, such as running Doom, playing Game Boy emulators, and reading full-length eBooks. Supported models: Fully supports 1st through 3rd generation iPods and has been successfully installed on all others with a display.

To replace the mechanical drive, you will need a specialized adapter interface. The industry standard is the , which replaces the stock ZIF or IDE ribbon cable interface.