I want start by saying that I did not take the 4.3 OTA from Verizon. I flashed my phone from 4.2.1 to 4.4.1 cm11 and various KitKat Roms. My last being mastamoons version. I wanted to flash back to a 4.3 TW ROM for stability. KitKat has been wonderful the days it decided to be 100% stable. But the myriad of issues plaguing my daily apps, freezing or phone rebooting warranted a flash to TW 4.3. I made a forum post because I was not entirely sure how to flash from 4.4 AOSP back to 4.3 TW and the advice given to me on CleanROM 8.1 thread was to format data, cache, dalvik and flash the zip. I did so and everything was fine. No bootloop (yet, kinda. Will get to that). So my phone rebooted and the first try got me to the start screen. Here is where things go wrong. It asks me for my PIN or Password as if it is encrypted. I've never encrypted my phone so I was perplexed. I thought maybe I triggered KNOX? But CleanRom 8.1 is touchwiz. But it doesn't not include KNOX from what I've read. I've wiped system and tried multiple methods of formatting the phone and I always get back to the same problem .
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