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The chips could be disabled by soldering some of their pins or by removing them with a hot air gun. Requirements that can be lifted Requirement

Ethernet (unlikely to be found on such devices).Booting the Bootloader from the USB or serial port.

Most of the hardware of the device already supported by upstream projects (Linux and a free software bootloader).To be able to use modern GNU/Linux or Android distribution on them, the source code needs to be used to add support for the device in recent hardware support software such as Linux or free software boot software like u-boot. Since e-readers without WiFi or telephony network connection are old, the software they come with and the corresponding source code is also really old. Requirements to do hardware support work faster Good SOC and no crucial peripherals requiring nonfree firmware (else the peripheral will be disabled in hardware).Enough RAM to run free software operating systems.Free boot software or the ability to easily port one to the e-reader.If so, is the free software driver for the vivante GPU sufficently mature not to steer users towards non-free software ?Įxisting hardware Hardware Requirements Basic requirements.Is it required to have a free software driver for GPU when the device is meant to be used as an e-reader and has a high latency e-ink display?.If a hardware block is present but typically not used (for instance if a device has a GPU but doesn't use it because it uses an e-ink display which has a high latency), it *may* not get into the way of RYF compliance, as it *probably* won't steers users towards nonfree software.To prevent such components from getting into the way of the RYF compliance, such components can be disabled in hardware. Some e-readers contains hardware components that doesn't work with free software (like WiFi chips requiring a nonfree firmware).RYF interpretation and resulting hardware choices

This is to see what the pros and the cons of liberating an existing e-reader versus making one. This page aims to document which existing ebook readers could become RYF certified without too much work.