Upgrade Android 5.1 version SDK to Android 7.1

Does the RK3128 fireprime SDK upgraded from Android 5.1 version SDK to Android 7.1 exist?
I am trying to upgrade a product developed with fireprime to Android 7.1.

Hello, sorry for keeping you waiting. The engineer is following this and he will reply you soon.

RK3128 only supports Android 5.1