How to install custom ROM on OnePlus 9

Nameless AOSP is based on Android Open Source Project, inspired by Google Pixel. We offer a smooth and stable experience for your device with a selected set of amazing features that provide an exceptional user experience.

Featured​

Nameless AOSP offers many improvements on the stock Android experience:

• Better performance
• Clean UI design
• Under-the-hood tweaks
• Privacy and security
• Customization
• Default experience

It also keeps what you’re used to on stock:

• SafetyNet passing out-of-the-box without root
• Some Pixel-exclusive features

Download

Android 13 (OOS13 based)

• Latest build
  • Nameless-AOSP_lemonade-13.0-20230114-0755-Official (SourceForge)
• Images
  • dtbo.img
  • vendor_boot.img
  • boot.img

Android 13 (OOS12 based)

• Latest build
  • Nameless-AOSP_lemonade-13.0-20221026-0306-Official (SourceForge)
  • Nameless-AOSP_lemonade-13.0-20221026-0306-Official (GDrive)
  • Nameless-AOSP_lemonade-13.0-20221026-0306-Official (Torrent)
• Images
  • dtbo.img
  • vendor_boot.img
  • boot.img

How to install

NOTE:
Dirty flashing from OOS12 based version is fine. The required firmware is included in the ROM.

DANGER:
- When coming from OOS to Nameless-AOSP OOS13 based ROM you need to have OOS13 installed.
- For OOS12 based build the required firmware is C.62-C.65 IN BOTH SLOTS! DO NOT SKIP THIS!

• Working brains, common sense, lots of coffee
• Latest platform-tools
• Google USB driver
• Developer options enabled: Settings -> About phone -> Tap Build number at the bottom seven (7) times
• ADB enabled: Settings -> System -> Developer options -> USB debugging
• Required images: dtbo.img, vendor_boot.img, boot.img (put these in the same folder with platform-tools)
• Get images from downloads page
• ROM zip (put it in the same folder with platform-tools)
• Unlocked bootloader

NOTE:
If you are currently on OOS11 it's better to unlock bootloader before updating to OOS12. For unknown reason some devices cannot be unlocked in OOS12.

1. Reboot your phone to fastboot mode
2. Open cmd and go to the folder where platform tools are (DO NOT USE POWERSHELL!)
3. Enter following commands by copypasting one by one:

fastboot flash dtbo dtbo.img

fastboot flash vendor_boot vendor_boot.img

4. Temporarily flash recovery:

fastboot flash boot boot.img

5. Reboot your phone to recovery mode, click “Install update” -> “ADB Sideload”
6. In cmd enter command:

adb sideload Nameless-AOSP_xxx.zip

7. Wait until your device shows Step 2/2 and back arrow appears. Click back arrow, then click “Factory reset” -> “Format data/factory reset” -> “Format data“

INFO:
Progress on your pc will stop at around 47%. It is normal behaviour.

8. Click back arrow in recovery, then click “Reboot to system“