You can verify if your firmware is genuine by checking the Serial Number in Settings > About Device and comparing it with the original packaging. How to Install or Restore Firmware If you have a refurbished
Using the wrong firmware version can permanently "brick" (disable) your device. If you are unsure of the region or model, it is safest to visit an OPPO Service Center. oppo a78 refurbished firmware
For OPPO devices, this typically means:
The Oppo A78 exists in both 4G and 5G models, each requiring specific firmware files. Installing the wrong version can lead to a "bricked" device. You can verify if your firmware is genuine