Get Calibre for the Kindle.
Get this Kindle plugin zip file.
Unzip the file, Open Calibre>Preferences>Plugins>From File>Unziplocation/Calibre_Plugins/K4MobiDeDRM_v04.5_plugin.zip
Choose the zip file K4MobiDeDRM_v04.5_plugin.zip
Customize plugin>Enter the Amazon Serial No
The serial no is located from Kindle>Home>Settings>Device Info>Serial No “B00E-” (example)
Hit Ok, close and restart Calibre.
The DRM is removed while importing the book to Calibre. So if you’ve already added the book, delete it from Calibre and readd it.
Joel G Mathew, known in tech circles by the pseudonym Droidzone, is an opensource and programming enthusiast.
His favorite pastime is grappling with GNU compilers, discovering newer Linux secrets, writing scripts, hacking roms, and programs (nothing illegal), reading, blogging. and testing out the latest gadgets.
When away from the tech world, Dr Joel G. Mathew is a practising ENT Surgeon, busy with surgeries and clinical practise.