Do not try to flash mini KERNEL/ROM/RECOVERY in a plus device. Most probably you will soft/brick your device.
mini/pop plus have few different hardware parts and nand structure. here is some plus hardware specs. ODIN not detecting plus device. Reply if anyone have more information and developing.
Attached working root and cwm zip files.
Recovery Mode: Volume Up + Home + Power
Download Mode: Volume Down + Home + Power
Processor: ARMv6 rev 5 - 832Mhz
RAM : 362 MB - 72MB Reserved
GPU : Broadcom Videocore 4
NAND : 512MB
system : stl9 - 225MB
cache : stl10 - 35MB
data : stl11 -189MB