[OnePlus 9] applyscience:
Wow. Just....wow. I came from another A 13 and, while it had OOS Cam (which isn't huge for me, I can use a GCam modded specifically for OnePlus 9) it was crashing all the time.

I came to xda today to see what ROM to downgrade to and noticed another A13. Perfect, time to see if the problems I had are on that as well.

Nope. Not only does it have none of the issues, Google dialer is pixel (edit: no it isn't. if you want it, see my edit at the end), nfc and Google pay are functional by default and was the smoothest conversation I've had in a long, long time.

I was worried that my preferred backup and restore feature (migrate on the play store) was the cause, but I restored my backup, set my zygote and then carried out the Google one time init that was waiting for me. It all went swimmingly.

To those looking for a how-to, as long as you're on c63 update from OnePlus (which most roms already were requiring for a month now) all you need to do is grab the boot, vendor_boot and dtbo from this roms zip via fastboot enhance (or search these forums for it)

EDIT: *caution* - I have uploaded the extracted images and have them hosted on mega for anyone who really needs it done for them. I do not suggest you use them as you are taking yourself out of the process of verification and thus, if something goes wrong, you have no idea if any of these were the cause or not. I really suggest payload.bin or Fastboot Enhance (FE has a super simple GUI system, nothing to it.) That being said, if you don't care.

Here is the Mega link with all 3 files extracted from the current release, as of this message, named elytra-3.0-trident-lemonade-official-1750-20220924.zip (Edit Again: I uploaded the OP9 GCam mod and pixelify magisk mod, too, just in case)

then just flash all 3 in fastboot.

And then use the volume keys to change the boot option to recovery and hit power.

Perform a factory reset, back out to main menu and select apply update, adb sideload.

Then in your fastboot console, type

adb sideload nameofzip.zip

When it's finished, reboot to the OS or, if you root as well, go to advanced and reboot to recovery again and sideload the magisk's just like you did the ROM.

You will need to click yes on your phone for magisk, as it's signature isn't verifiable. Once it's done, you're golden.

Thank you so much, OP. This is beyond impressive so far. My only criticism is that ugly boot image :) , But the similar 8-bit style of the ROMs name splash is great.

Beyond the superficial critique, this is beyond impressive.

Edit: If you NEED google Pixels AI call screening like myself, There are a handful of solutions out there ranging from google dialer magisk mods, google dialer mod apks and magisk hide props, so you can simulate a pixel and get them to function. I was having issues with all 3. So I used an older option I had, the pixelify magisk mod. Low and behold, that did it!. I have attached the zip for your convince. When installing you need to test your volume keys and then select what to install, the ONLY thing I installed was the google dialer, the rest is not needed or already installed. Reboot and your dialer should now have Hold for Me, Call Screening and Direct My Call. Just know all 3 rely on having google app installed. The Lens service in the google app is amazing too, so you might as well use that, since the dialer needs the app already.