[Amazon Fire Phone] aGiantDinosaur:
EDIT: I've managed to get a dual boot through Safestrap. I now have 3 custom ROMs + stock ROM. I now only need Cyanogenmod 10.2 for the Amazon Fire Phone or a universal .apk that will let me emulate any data I want.

For those of you wondering how to get ROMs, simply get Safestrap (I currently have v4.01) and install a recovery. Then, reboot your phone and click Recovery after the Amazon logo shows. After this, go to boot options, make another ROM slot, and flash the desired ROM to this slot. I would like to give credits to [MENTION=5749760]ggow[/MENTION] for the ROMs and Safestrap.

--Backstory 1--

Okay, so recently I had an idea. When Nintendo released update 5.5.2 for the Wii U a couple days ago, they blocked pretty much any way to get the Homebrew channel on it. After thinking about the problem for a couple days, I thought, "Wait... the Wii U has NFC to use Amiibos. What if people made Amiibos that worked?" So I looked it up and turns out, there are methods for making your own Amiibos.

Then I thought, "What if you made a corrupted Amiibo that would install the Homebrew channel through a video game?"

I realized this might work. I knew Android had some method of NFC emulation, but wherever I look it only emulates credit cards.

--Problem 1--

I have a rooted (Kingroot) Amazon Fire Phone. I've done all the things to get Google apps, Play Store, etc. I realized this has NFC and I could emulate Amiibos through it (my goal is to emulate a fake Amiibo).

Is there an existing app or .apk file that allows me to emulate NTAG215 files? Alternatively, does anyone know how to write their own NFC data, or edit the .bin files of Amiibos? I know I can't edit existing Amiibos, but I do know that there must be some way to make my own custom ones (take Naruto, Goku, Batman, Superman, Wonder Woman... these Amiibos will never be made by Nintendo. How do I make them?)

--Backstory 2--

So I found out that through Cyanogenmod 10.2 it is possible to emulate NTAG215 NFC tags. This is really helpful so that way all I have to do is get Cyanogenmod and everything will be fine. However, Cyanogenmod 10.2 does not have full camera support, so I cannot keep my phone on Cyanogenmod. This means I'd have to switch ROMs every time I wanted to use an Amiibo (or use a Snapchat lens, or take a nice quality picture on vacation). So, I looked up how to dual boot an Android phone. There's support for pretty much every device but mine.

--Problem 2-- PARTIALLY SOLVED

Is there a device-generic or kodiak dual boot application? This would be incredibly helpful to me as I could install HBC on as many Wii Us as I want... and at the same time preserve all my storage on my phone and quickly switch from one ROM to another.

TL;DR: I need an app that lets me emulate NTAG215s through my phone; and a method as to how to edit or write my own .bin files.

Links:

Safestrap (download): https://www.androidfilehost.com/?fid=24052804347768716

Cyanogenmod 10.2 NFC emulation: https://xdaforums.com/hardware-hacking/nfc/emulating-ntag215-amiibo-cyanogenmod-10-t3302278

Amiibo recreation: https://newagesoldier.com/make-your-own-amiibo/

ROM for Amazon Fire Phone: https://xdaforums.com/fire-phone/development/rom-cm-11-20150706-unofficial-t3151443