[OnePlus 9] applyscience:
tuckandroll​

marcelobra1​

Nameless will require at least C62 (C63 is confirmed working and maintainer stated as much. The important part is the lineage image you use.) in both slots. Since c62(or higher) is only available via a incremental update, its not flashed like other images. So you will use a copy script once you are back on OOS, updated and unlocked.

Since i tagged two of you, I may go over more than you need to be told or applicable to, just read and follow whatever part you need help with.

Backup​

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Do a backup with your choice. google alone or a 3rd party offering, if you have more apps than what google offers in the play store(f-droid, etc)

I like migrate.(https://play.google.com/store/search?q=migrate&c=apps) it's a pretty simple process, just follow the prompts. If you use google at all to login, just backup the apps, not adb state, font size, contact, you know the drill.

This will still not backup your files! (pictures/music/downloads) I have no faith in full backup solutions in this stage of android. your best to cloud or copy them out manually.

Get back on OOS/get needed files​

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Use MSMToolkit first to get back to OOS. Start this first and work on getting everything else prepped while you wait between MSM/OOS updates. Update it until it can't be updated anymore.​

Unlock the bootloader and let it wipe and get back in, so you can enable adb again.​

Download this exact lineage image to extract its dtbo.img, boot.img and vendor_boot.img https://mirror.math.princeton.edu/pub/lineageos/full/lemonade/20220807/​

*Caution* I have uploaded the 3 img files and copy-partitons.zip to mega.nz if you need. 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. That being said, if you don't care. all 4 files are right here​

the easiest way to extract images on windows is to use fastboot enhance (github / XDA Thread)​

in fastboot enhance, it's as simple as clicking the payload dumper tab,​

clicking browse, select the lineage file you downloaded and once loaded​

select the Partitions tab below the original tabs.​

While holding down ctrl on your keyboard, click boot, dtbo and vendor_boot, to highlight all 3 at once. click extract.​

Put the 3 files where your fastboot latest Namless image zip is.​

Download this copy of partitions zip. Put it in your fastboot folder​

Grab the latest magisk.apk if you plan on rooting and rename it from .apk to .zip​

and of course the latest Nameless image

Copy Partitions/Flash Nameless Time​

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With everything you downloaded in your fastboot folder, type cmd in the top bar to quick open a command prompt with that location as its starting point. You should now be in cmd with your phone connected, fully updated and unlocked again (not root, just unlocked) with adb enabled again. Type

adb reboot bootloader and check your phone, if it's not rebooting, make sure you granted adb access to your pc on the phone itself. you should be prompted once that is ran. Your phone should now be in fastboot. Now flash the 3 image files we got from lineage

fastboot flash dtbo dtbo.img
fastboot flash boot boot.im
fastboot flash vendor_boot vendor_boot.img

boot into the lineage recovery by using the volume keys to change to "boot to recovery" and confirming with the power button or run the command below​

fastboot reboot recovery

To copy the current partition to the other. Select Apply Update and then Apply from ADB. Back in the command prompt, type​

adb sideload copy-partitions-20210323_1922.zip

Make sure it initiates. Since its signature isn't verified, (i think?) you should have to click yes to force it via your phone.

Once complete, click the back arrow and select Advanced>Reboot to Recovery

factory reset/format data. Once complete, in the same recovery, back arrow to main menu and apply the Nameless Rom.​

adb sideload Nameless-AOSP_lemonade-12.1-20220825-1712-Official.zip

Once this is complete, back arrow, advanced, Reboot to recovery again.​

You should notice the recovery is no longer branded with a lineage logo at the top, but with nameless's logo.​

Factory reset again.​

Reboot after factory if you aren't rooting, but If you want magisk, in the same recovery apply it and then reboot into your phone​

adb sideload Magisk-v25.2.zip

Thank you for joining my ted talk.