e60-open


Open-Source Firmware for the Samsung E60 eReader

Introduction

This project aims at creating an open-source firmware and enhancing the capabilities of the Samsung E60 eReader device.

The project started when we found a way to create a custom firmware for this device.

Then, we learned how to replace the original firmware by a custom firmware using the built-in upgrade procedure.

Eventually, we have now a way to recover safely a "bricked" E60 device, thanks to Samsung's official answer describing how to access the built-in recovery mode

So, here are our greatest achievements so far:

Custom Firmware

Using our FoxFirmware 2.1, it is now possible to: * browse the Internet using a Wifi connection with a custom home page replacing the default book store page * change the icons, thanks to the theme support * add a boot sound * get enhanced icons and translations * play music using the command line using XMP * launch custom Shell scripts once or at every boot * connect to a command line Shell using either telnet or SSH * mount a TCP/IP network over USB

Hardware

Regarding the hardware: * we obtained invaluable information from the "service manual" and the slideshow found on one Samsung support website * we performed a complete E60 teardown (also here without pictures) * we analyzed most of the E60 electronic components and PCB * we found where to connect on the PCB to get a U-Boot bootloader/Linux serial console access

Software

As for the software: * we found how to access the built-in U-Boot bootloader and how to test a kernel from it * we found the way to access the interesting devices from Linux (including the display, the touchscreen ,the USB port, the LEDs and the keypad) * we have access to the device system logs * we know how to setup a toolchain to compile software for the E60 * using the Samsung provided instructions, we know how to rebuild and reinstall the Open Source part of the original firmware * we know how to cross-compile a QtEmbedded toolchain, as this is the framework used by the device's main application software * we know how to debug an executable on the E60 device using either gdb remote or strace

TODO

Despite all the progress that has been done, there are still a lot of things to do in order to get a fully opened firmware for the Samsung E60 device: * as of today, we still don't know how to replace the closed-source main QtEmbedded application, in charge of the user interaction, device management and eBook display (including the dreaded DRMs...) * we also haven't succeeded yet to replace the obsolete 2.6.29.4 original kernel by a more modern Linux kernel that includes both the mainstream broadsheet eInk display video driver and the Samsung E60 platform-specific patches

As it is today, this project is still a work in progress, and you are welcome to contribute to it!

Project Information

Labels:
Ebook