Duokan 2013/2014/2015 on Kindle 3, firmware 3.4.2
I really like Duokan for reading pdf files and I had it installed on Kindle Keyboard 3 with firmware 3.4. Apparently, firmware has been updated automatically from 3.4 to 3.4.2 and Duokan has been disabled since then. When I try to install Duokan (2015 or 2014, it doesn't make a difference), option "Update Your Kindle" is greyed out. Is there any way to install Duokan or to downgrade kindle and if so, how to disable device from upgrading automatically.
Thanks a lot!
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