Htis is Lollipop mod for Samsung Galaxy Core 2 SM-G355HN and this mode is installed over recovery(TWRP).
This will work if you install costum ROM. And don't work on Stock!!
* You flash this at your own risk.
Installation is via CWM recovery or TWRP
1. Start CWM recovery
2. Install zip from SD Card.(If TWRP writes install)
3. Find where you downloaded
5. Mode will automatically restart your phone.
(don't Wipe Data, Cache, Dalvik and System!!)
Downolad on Mega: https://mega.co.nz/#F!6RgzRJab!lXyJ6Mp6dOuq4WZbIBNEDA
On Mega /#F!TABnkIrT!zGgyZV0ZmcZLYHr7IWcrfQ