Amazon Kindle 4 User Manual

Reset Kindle to Factory: How to Soft and Hard
Reset Kindle
What's the difference between soft and hard reset kindle?
While both Soft and Hard Reset are used for troubleshooting and fixing
malfunctioning devices, they have their own unique effects on the device.
Restart kindle is also known as soft reset. This "soft" reset restarts
the Kindle software, but won't affect any of the documents or books you currently
have saved on the device.
Reset Kindle to Factory, also called hard reset, will remove all downloaded and
transferred content from your Kindle. You will still be able to download items from
the cloud.
In what cases do we need to restart or reset kindle device?

Amazon Kindle 4 Specifications

General

Display Size	6 inches
Display Technology	E Ink Pearl
Grayscale	16-level grayscale
Weight	170 grams
Supported File Types	Kindle Format 8 (AZW3), Kindle (AZW), TXT, PDF, unprotected MOBI, PRC natively; HTML, DOC, DOCX, JPEG, GIF, PNG, BMP through conversion
Storage	2 GB
Connectivity	Wi-Fi 802.11b/g/n
USB	USB 2.0 (Micro-USB)
Dimensions	166 mm x 114 mm x 8.7 mm
Battery Life	Up to 1 month (with wireless off)
Supported Formats	Kindle (AZW), TXT, PDF, PRC, HTML, DOC, DOCX, JPEG, GIF, PNG, BMP
Processor	Freescale i.MX508 800 MHz
Resolution	600 x 800 pixels (167 ppi)
Operating System	Proprietary (Linux-based)