Before diving into the steps, it is critical to understand what a hard reset actually does.
This method is ideal if your VIVO X9s is still responsive, and you know your PIN, pattern, or password. How to Hard Reset VIVO X9s
A hard reset takes time. If the battery dies during the formatting process, it could corrupt the system software, potentially "bricking" the device (rendering it unusable). Ensure your VIVO X9s has at least before starting. Before diving into the steps, it is critical