Ensure you are holding the correct button combinations during power-on, or that your USB debugging permission is fully granted before running the ADB reboot command.
Download and install the Android SDK Platform Tools on your PC. ⚙️ Step 1: Enable Developer Options and USB Debugging
Open the folder on your PC where your ADB/Fastboot tools are installed.
: Ensure your phone has at least 50% battery before starting to prevent it from turning off mid-process, which could brick the device. Unlock Bootloader Oppo A16
If you happen to own the of the Oppo A16 (sold in mainland China), you may be able to use Oppo’s Deep Test APK . The process involves downloading the Deep Test application from Oppo’s official channels, logging in with your Oppo account, and submitting an unlock request. If approved, the tool will guide you through unlocking the bootloader. However, for the vast majority of users (especially those with international models like CPH2269, CPH2275, or CPH2270), this method is not available .
Look at your phone screen. A prompt will ask to allow USB debugging. Check "Always allow" and tap .
The phone will now restart. It may show a “Orange State” warning — this is normal and indicates that the bootloader is unlocked. Ensure you are holding the correct button combinations
If your phone continuously restarts without reaching the setup screen, boot back into Fastboot mode and execute fastboot format userdata to clean up residual encrypted files. Next Steps After Unlocking
Alternatively, the brute-force command:
Unlocking makes your device more vulnerable to malware and may break banking apps. Step 1: Enable Developer Settings : Ensure your phone has at least 50%
Unlocking the bootloader on your Oppo A16 is the gateway to total device customization. By default, Oppo locks the bootloader to ensure system integrity and security. However, for power users, opening this door allows for custom ROMs, rooting, and advanced system tweaks.
: You can permanently delete system-level apps that normally cannot be disabled in ColorOS. Custom Recoveries : Unlocking allows the installation of
: Create full-system images to prevent data loss.
If you have found an exploit or a working method, you need these tools ready on your .
This command writes an “unlocked” flag into the security configuration. After this succeeds, the bootloader is technically unlocked.