Do not continue after something fails!
Before you start, make sure you’ve deleted every Google account from the device on a fresh install. This will prevent “Factory Reset Protection” (FRP) from kicking in during the setup steps.
Installation is only possible on a device with unlocked bootloader!
We are not responsible for any damage you made to your device. You have been warned!
Flashing instructions
Required Files
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Download the needed files for download page
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Required device files for first-time install:
- boot.img
- dtbo.img
- ocean_gpt.bin
- ...and then the latest OTA zip for you device (crDroidAndroid-15.0-xxx.zip)
*Do NOT substitute any of these files with files that you've downloaded elsewhere if you want support for your installation.*
First time installation (clean flash):
- Prepare the device for fastboot mode:
- Power off the device.
- Press and hold Power + Volume Down buttons until Fastboot mode appears.
- Connect the device to your PC via USB cable and verify the connection with:
fastboot devices- Flash ocean_gpt:
fastboot flash gpt ocean_gpt.bin- Flash the required images:
- Boot image:
fastboot flash boot boot.img- Dtbo image:
fastboot flash dtbo dtbo.img-
Enter Recovery mode:
- Use the volume buttons to navigate to "Recovery Mode."
- Press the Power button to confirm.
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Perform a Factory Reset in Recovery mode
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Navigate to "Wipe data/factory reset".
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Confirm the action to clear old data.
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Install the ROM
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Use the adb sideload command with the ROM file:
adb sideload crDroidAndroid-15.0-xxx.zipUpdate installation:
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Reboot the device into Recovery mode.
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Install the update:
- Use the adb sideload command to flash the update file:
adb sideload crDroidAndroid-15.0-xxx.zip- Reboot the device:
- After installation, select "Reboot system now" from the Recovery menu.
Via OTA:
- Go to Settings -> System -> Updater and download latest build
- Choose install and let it finish
- Reboot
Your device should now be updated!