[ONE Original Android Development] Gawd:
[FOR MULTIROM USERS] [20160828][20160831][20160903][20160906][20160910][20160918][20160919]

So, this guide is for all MultiROM users, I'll compile everything in it so that you won't need to gather the information of 5-8 posts. Since I did it, and it took me a little while to figure it out, I thought I should share this so that no one else ends up in FCs and bootloops. So let's begin.

1. First off, every multiROM user wants to flash this as a secondary ROM so I modified the .zip so that the ROM flashes. (Thankyou [MENTION=4382241]ansonscleung[/MENTION] for this)

Here are the modified files :

For 20160828 : https://drive.google.com/file/d/0Bzedbk3OVKq1UWo0RmlwaDFCOFk/view?usp=drivesdk

For 20160831 : https://drive.google.com/file/d/0Bzedbk3OVKq1Zy01bHRPdEZkckk/view?usp=drivesdk

For 20160903 : https://drive.google.com/file/d/0Bzedbk3OVKq1ejJsZGZhVGc5dVk/view?usp=drivesdk

For 20160906 : https://drive.google.com/file/d/0Bzedbk3OVKq1ZFZyQ3lvMkQ1ajQ/view?usp=drivesdk

For 20160910 : https://drive.google.com/file/d/0Bzedbk3OVKq1d01ONXVReE9XZDA/view?usp=drivesdk

For 20160918 : https://drive.google.com/file/d/0Bzedbk3OVKq1d2hLUlVIVndpZ0U/view?usp=drivesdk

For 20160919 : https://drive.google.com/file/d/0Bzedbk3OVKq1dXlDa3hsSGZadGc/view?usp=drivesdk

Flash this .zip as secondary ROM

2. Flash SuperSU 2.68 or higher for root and any other add-on you want. I recommended just flashing SuperSU 2.76

http://xdaforums.com/showthread.php?t=1538053

(Thanks to [MENTION=631273]Chainfire[/MENTION] for this :D)

3. For a more immersive experience, I recommended enabling the Navbar and disabling the HW buttons. For this, flash the following .zip(s)

For enabling the Navbar : https://drive.google.com/file/d/0B2Y1syM7UNuDYVRhM3BTYVA3SXc/view?

For disabling the HW keys : https://drive.google.com/file/d/0B2Y1syM7UNuDSFZwUHNLQ0RfdXM/view?

(Thanks to [MENTION=5782089]The Dork Knight Rises[/MENTION] for this)

After everything is flashed successfully(hopefully), press reboot and choose AOSP 7.0 to boot in multiROM viewer.

If you flashed just I did, following all the instructions, then the ROM will take 3 boots to finally boot up. It will seem like a bootloop, but its not! You will get the android logo, then back to multiROM viewer 2 times, but then in the third time it'll boot up. Note that this happens only at the first boot. So, no worries.

4. So you're finally into the system. Just enjoy the breeze(you'll not get any FC now). After you're done with adoring Nougat, reboot to recovery. Turn off the phone, and then volume down+power to get to recovery.

5. So you're in recovery now, flash GApps now. I recommended OpenGapps Mini 7.0

Link : http://opengapps.org

6. After the flash is successful, boot again and this time you'll not bootloop. It'll take mere 15-20 seconds to boot this time.

7. Now you'll see some Google Play services FC, but, don't worry. I've got your back. Go to settings>Apps>Menu>Show system apps>Open Google play services from there and grant all the permissions. Now open Google Contacts Sync and give it the Contacts permission. All the FCs should stop by now.

8. To add your Google account, go to settings> account and add your account there.

9. To add SystemUI Tuner, tap and hold the settings gear key in the status bar.

10. Awesome. You're welcome.

Thankyou every one who have already posted the step by step guide, but I really wanted to post my own for multiROM users. I'll be glad if this proves helpful to someone.

*Please upvote this so that people can view this more easily, and its easier for them.

Thankyou.

[MENTION=4812336]updateing[/MENTION] can you add this to OP? This might be of some help to people.

-------------------------

Update: Opening the Developer Options freezes the settings. There is no such hang or lag, just a freeze. Simply remove Settings from recent and you're good to go. Other users are also reporting this. Seems like a ROM issue then :)

Update2: So I flashed the "Enable hidden SystemUI mod" and it's working perfectly fine for me. (You can flash this after doing all this or at step #3)

Because, this might have broken the sytemui.apk, I made a backup and I recommend taking a backup since its always the safer way round.

Here's the proof that it's working even on 20160828: https://imgur.com/gallery/9O2wE

Update3: No, don't flash the "enable hidden SystemUI". You won't be able to access the internal storage, and that's a big issue. So just don't flash this if you're using MultiROM with this ROM as a secondary ROM.

Also, of you mess up somewhere, I advice a clean install instead of a dirty flash because if you dirty flash, you'll get many FCs since the GApps are not preserved in this ROM and nor will be the nav bar and the disable HW keys be preserved (the workaround is to dirty flash the ROM with the nav bar and HW keys .zip(s), along with the GApps and you're fine. Basically dirty flashing everything)

Since I flashed the SystemUI .zip mod on 20160828 to enable hidden features, I had to either dirty flash everything again or restore my ROM backup(which I did). So it's always recommended to take a ROM backup. https://imgur.com/gallery/OXn9E

Enjoy!