How to add EPUB, MOBI, and PDF files to your Kindle - no converting required
Briefly

The article discusses the challenges of using older Kindle devices, particularly after the closure of Amazon's download service. Key points include the inability to wirelessly transfer books to older models such as Kindle 1, 2, and DX, along with the risks of unregistering these devices. Once unregistered, these models cannot establish connectivity with Amazon, making them unusable for reading certain books. Users can still transfer already downloaded books to such devices via USB, provided they remain registered and compatible with the downloaded formats, which can change over time.
You can transfer books wirelessly to the Kindle 1, Kindle 2, and DX anymore.
But if you've already downloaded Kindle books prior to the February 2025 cutoff date, you can upload them to discontinued devices via USB.
If you unregister a Kindle 1, 2, or DX, you can't re-register it because there's no way to establish connectivity to Amazon.
If you still have the obsolete Kindle registered to your account, any of your Kindle books you've downloaded should be compatible.
Read at ZDNET
[
|
]