Firmware Oppo A78 4g |top| -

| Type | File Extension | Purpose | |------|----------------|---------| | (Full) | .ozip | Local software upgrade via Settings or Recovery. | | OFP (Fastboot) | .ofp | Full system restore via PC (unbricking). | | OTA Incremental | .ozip (small) | Small patches between versions. Requires exact current version. |

If you have rooted your phone to install custom ROMs or mods, you might eventually want to return to the stock experience to receive official updates or use banking apps securely. Flashing the "Stock ROM" removes root and restores the device to its factory state. Firmware OPPO A78 4G