Owners of older Kindles urged to update software
Users of older Kindle e-readers will be disconnected from the internet if they do not install a critical update by 22 March.
Affected customers will no longer be able to access new books from the Kindle Store, or sync with the Cloud, unless they manually download the update via USB.
However, a message being displayed on the devices will not make that clear.
It will only prompt users to restart their Kindles.
On its website, Amazon urged owners of the original 2012 Kindle Paperwhite and older devices to install the update.
It said: "If you do not update your device by March 22, 2016, you will receive the following message on your device: Your Kindle is unable to connect at this time.
"Please make sure you are within wireless range and try again. If the problem persists, please restart your Kindle from the Menu in Settings and try again."
The only way the solve the problem, however, will be to plug the device into a computer and download the relevant update from the Amazon website.
Amazon said that to install the update before 22 March, users should go to the Kindle home screen, choose Menu and select "Sync and Check for Items".
The device will then update when asleep.
The Kindles affected include:
- Kindle 1st Generation (2007)
- Kindle 2nd Generation (2009)
- Kindle DX 2nd Generation (2009)
- Kindle Keyboard 3rd Generation (2010)
- Kindle 4th Generation (2011)
- Kindle 5th Generation (2012)
- Kindle Touch 4th Generation (2011)
- Kindle Paperwhite 5th Generation (2012)
According to the Kindleworld blog, the update will not affect a user's reading experience.
However, it said, a second update has been released which modifies the interface of more recent Kindles.
"Some [users] are not enthralled with the new interface because it includes recommended books," iKindleworld said.
"Some of us have always turned off the option to see Amazon recommendations, as we just want to see the books we bought and prefer to go to the Amazon pages if we want recommendations."
But users who do not want book recommendations can turn them off in their device settings by following instructions set out in an Amazon forum.