[Verizon Galaxy Note 4 Android Development] AstonsAndroid:
Update: Recover from worst case scenario (A Perfect Retail 6.0.1)

For everyone's information I ignored most of the advice in these (go there , come here posts) I just recklessly performed the following steps prior to attempting this titled Post.thread: [Firmware] [MM] [6.0.1] [RetEd/DevEd] Safe Upgrade to Marshmallow [N910VVRU2CPD1

1. Used EFS Professional to completely back up all partitions of my factory Developer Note 4 (Just In Case)

2. Downloaded and Flashed VIA ODIN the latest 6.0.1 SM-N910V from SamMobile 2016-06-28	USA (Verizon)	6.0.1	N910VVRU2CPD1	N910VVZW2CPD1

*** Yes it flashed me to a Retail version with a flawless 6.0.1 SM-N910V firmware and yes it over wrote my DE boot Loader. But I (Like You) do not like to be hindered by such petty things as locked boot loaders.

3. I then flashed the most recent Sam-mobile 2016-06-15	USA (Verizon)	5.1.1	N910VVRU2BPA1	N910VVZW2BPA1

*** Yes it flashed me to a Retail version with a flawless 5.1.1 SM-N910V firmware and yes it over wrote my newly acquired 6.0.1 boot Loader. But I (Like You) do not like to be hindered by such petty things as locked boot loaders continued on.

4. I then proceeded to Extract and flash N910VVRU2BPA1_N910VVRU2CPD1_FullFirmware.tar.md5 via Odin just because It says the boot loader that this firmware installs is 6.0.1 friendly.

5. I used the boot loader unlock that is only described exactly and clearly in this post: http://xdaforums.com/showpost.php?p=66381707&postcount=342 (the rest are partial and confusing at best)

6. Finally I flash N910VVRU2CPD1_StockRestore.tar.md5 It does not overwrite the Developer boot loader or any custom recovery that you have just done in step 5.

Summary: I flashed Super SU (make sure it is the right one it solves all that DMverity crap and Kernal @*!$) and everything is wonderful. I'm pretty sure I did everything wrong that I could and still arrived at the proper place. Even Verizion is still sending me OTA??? Oh and for the one issue mentioned about Application Manger missing just use Root Essentials or Titanium Backup app to augment the only issue I can find.

Updated after one more crazy idea:

7. I heard FlashFire could do some amazing things, so after steps 1-6; and with nothing left to lose I decided to flash that Original latest Verizon 6.0.1 ROM from step 2. again this time with FlashFire (after a full FlashFire Backup to external SD). Low and behold allowing it to dirty flash the the latest 6.0.1 SM-N910V from SamMobile 2016-06-28	USA (Verizon)	6.0.1	N910VVRU2CPD1	N910VVZW2CPD1 by defaults (minus Bootloaders and Recovey) it returned a perfect Verizon Note 4 Developer Edition 6.0.1 with no issues at all. forget about application manager and other minor fixes this thing is perfect. It even retained all Super SU and such. Wow!!!

Case closed!

Update 2016.07.02:20:06 CST

My new Rig downloaded N910VVRU2CPF3 OTA update today and I simply let FlashFire handle it with defaults. It allowed only the update to the system , restored TWRP and protected the unlocked boot-loader, I'm now on the latest firmware fully supported by Verizon, Developer Edition and fully rooted. Magic?