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Deployment Manual

FLASHING & INSTALLATION
TECHNICAL REFERENCE.

Step-by-step terminal commands for fastboot flashing, ADB sideloading, partition preparation, and verification for the OnePlus 3T (MSM8996pro).

1. Prerequisites & Driver Setup

Ensure the Android Platform Tools (adb and fastboot) are installed on your host machine and present in your system PATH. On Windows, verify that the Qualcomm USB Driver / Google USB Driver recognizes the phone in fastboot mode.

2. Bootloader Unlocking

Enable OEM Unlocking in Developer Settings, connect the phone, and reboot into fastboot: 

adb reboot bootloader
fastboot devices
fastboot oem unlock

Confirm the prompt on the device screen using the volume keys and power button. Unlocking will format the userdata partition.

3. Flashing CYRONIX Recovery OS

Flash our verified recovery image directly to the device recovery partition: 

fastboot flash recovery recovery-cyronix-branded.img
fastboot boot recovery-cyronix-branded.img

4. Partition Formatting

In CYRONIX Recovery OS:

  1. Tap Factory Reset.
  2. Tap Format data/factory reset and confirm.
  3. Return to the main menu.

5. Sideloading CYRONIX OS Package

On the device, tap Apply Update > Apply from ADB. Then execute from your computer: 

adb sideload CYRONIX-OS-1.5.1-20260922-user-oneplus3.zip

The recovery will stream the package, verify the embedded cryptographic release key signature, apply the system images, and output Total xfer: 1.00x.

6. First Boot

Tap Reboot system now. The first boot sequence takes approximately 23.1 seconds as verified by our on-device benchmarks.