Amazon have warned Kindle customers of a Critical Software Update for Kindle E-Readers and if the update isn’t done by 22nd March 2016 the device will not connect to the internet (stopping you from browsing the Kindle store etc).
To update your Kindle once connected to Wi-Fi:
- From the Home screen of your Kindle, select Menu or tap the Menu icon and then choose Sync and Check for Items.
- Plug your Kindle in and leave your Kindle plugged in and connected to a Wi-Fi network overnight.
You can read more on Amazon’s Kindle Page