I downgrade my kindle version from your link but i am unable to register it. I get the windows thinking icon, blu arrow circling next to cursor and then kindle stops working
We are sincerely sorry for this issue. Please download latest kindle for pc and then follow this guide to remove drm: https://www.epubor.com/faq.html#e109
Any more problem, please feel free to contact us via support@epubor.com. Have a nice day.
