How can I find Lollipop 5 to downgrade my Samsung Folder SM-G1600

[elizd]

I have just bought the Samsung Folder SM-G1600. It uses Android Marshmallow and I want to downgrade to Lollipop. I've read all the methods and downloaded G155SKSU1APL2_G155SSKC1APL2_G155SKSU1APK1_HOME.tar.md5 but Odin gave me a big red FAIL.
Am I wasting my time? Could someone please point me in a better direction (like, don't bother?!!)

 

[B. Diddy]

Welcome to Android Central! Those firmware files are for the original Folder (SM-G155S). You'd need firmware specific to the SM-G1600, but I can't find it on SamMobile (which is usually the best resource). Of note, the SM-G1650 appears to have come with 6.0.1 installed, so it's likely that the Folder 2 has only ever had Marshmallow installed. You can't force some other Lollipop firmware designed for another phone onto your phone.