Hi there, GPD Noob here.
I have had my device for a few days now, rooted to Legacy rom, and want to try out the Sony remote play modified android app. The following website (which has a recent workaround for android to match the ps4's latest firmware)
informs me that you have to install sony's framework as a zip through recovery mode, and then reinstall the remoteplay app, but I am not sure exactly how to do that on the Legacy roms recovery boot screen.
http://forum.xda-developers.com/android/apps-games/5-0-playstation-remote-play-android-t3466339If anybody could be of assistance I would be greatly appreciative!