Please help me.
I used Kindle Touch and installed Duokan for read PDF file. One day, I can't find that problem. My books and files in device had all lost. althougn I sync in PC, It's just found folder "documents" and "dictionary" and "Kindle User's Guides"
The Device can't restart to Kindle application. It's not responsed although I push and hold power button. It's still be Duokan application.
and I decided to format Kindle Drive, but although no file in this drive. It's still be Duokan application.
How I re-install Kindle Touch.