ColorOS 5.2 is known for pre-installed apps that can feel cluttered and take up storage, though the device does offer a generous of internal space. Limited Updates: Official support for the
Firmware for India, Indonesia, Australia, and China are not interchangeable due to different LTE bands and pre-installed apps. Firmware OPPO R15x
(Good for its age, but outdated)
You can also download the firmware update from OPPO's official website and install it manually. Here's how to do it: ColorOS 5