Coming from a Pre KitKat ROM
Do a back up!
Do factory reset/ wipe (incl. /system)
In recovery: flash ROM zip file. (You WILL get an assert error!)
Read the warning on the screen.
Flash the ROM again!
Please keep in mind that your device needs to be rooted with a custom recovery in order for this method to work.
Is this ROM for the US Version of the Samsung Galaxy Player 5.0 YP-G70? Because when I flashed it then tried to reflash it after the error, it came up with the same error.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?