Set up the Android SDK Platform Tools on your computer. Step-by-Step Guide to Unlock Bootloader on Oppo A16
If you need root/custom ROMs, and buy a phone with official unlock support (Xiaomi with unlock permission, Google Pixel, Nothing Phone, or second-hand OnePlus).
As of 2025, Oppo has officially removed the "Deep Testing" app for many legacy MediaTek devices like the A16. Below, I will detail the official method (if still available) and the unofficial exploits required to get the job done. Unlock Bootloader Oppo A16
The unlocking process will require a full data wipe, but it is good practice to explicitly erase the userdata and metadata partitions:
Because the official method is so inaccessible, the entire process for unlocking an Oppo A16 globally falls into the realm of unofficial, third-party tools and exploits. Set up the Android SDK Platform Tools on your computer
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Once the waiting period is over and your phone is ready, follow these steps: Below, I will detail the official method (if
Unlocking the bootloader typically voids your warranty .
Tap on and then tap Build Number 7 times until you see "You are now in Developer Mode".
Type the following command and press Enter: adb reboot bootloader
Look at your phone screen. A prompt will ask to allow USB debugging. Check "Always allow" and tap .