.. _librem_5_raw_serial:

Raw Serial Access
=================

Debugging a Librem 5 that boots is pretty easy–just open a terminal or access the serial console over USB. But if you are doing kernel development or porting alternative OSes to the Librem 5, you might end up with a Librem 5 that won’t boot far enough to load regular diagnostic tools. When that happens it’s time for raw serial access.

.. raw:: html

    <video width="80%" controls>
        <source src="https://videos.puri.sm/promo/serial.mp4" type="video/mp4">
        <source src="https://videos.puri.sm/promo/serial.webm" type="video/webm">
        Your browser does not support HTML video.
    </video>

:download:`Download <https://videos.puri.sm/promo/serial.mp4>`
`Text version <https://puri.sm/posts/avoid-boot-loops-try-librem-5-serial/>`_