iPhone 6Plus Kindle App no 'listen' icon
Decided to use my old 6plus in place of my iPod Touch to use for music and as an e-reader.
I've downloaded the Kindle App and books and audiobooks already purchased. On my iPhone 7Plus, iPod Touch, Ipad Pro and ipad Mini when I open a book which has an audiobook, at the bottom of the screen is an earphone icon (listen) which I should be able to press to download the book and listen as I read. But there is no listen icon. I also have all the books in my Audible app but I want them to play as I read the e-book.
The only instruction I can find (which I already know about as I have done so on my other devices) is to press the centre of a page as I read a book and click the listen icon but as that is not there I can't.
When I close the book and click the menu button in the Kindle home screen the 'read & listen with Audible' option is missing. As I had intended to sell the 6plus I had removed all apps and data. Prior to doing so I had been able to listen to audiobooks whilst reading e-books in the Kindle app.
Any assistance would be appreciated.
iPhone 6 Plus, iOS 9.3.5