Sony PRS T3 how to do a firmware update in 2024?

Hi,

I recently got a Sony PRS T3. It's neat! I got it for really cheap and I just needed something to read ebooks and that had physical buttons.

I was wondering if there is a way to update it to the latest firmware (if it's even worth it) as mine has the original firmware. My hope is to be able to connect to the internet to use Evernote, even though I have the feeling that it is not possible anymore.

In any case I still really like it.

Thanks!