Attempting a hard reset through Recovery Mode (holding Volume Down + Power). Note: Modern Oppo/Vivo devices often require a password even for a factory reset in recovery.

Essential functions like the camera, factory reset, and SIM card connectivity may be disabled or limited. 2. Common Removal Methods

Demo Mode is a pre-installed software configuration used in retail stores to showcase a phone's features. It typically includes:

Before downloading unknown software, it is recommended to check official support forums or reputable developer communities like XDA Developers for verified guides. Always back up any data (if possible) and ensure the PC used for flashing has updated antivirus software.

Popular third-party tools mentioned in the community include the UnlockTool (paid/professional) or various "All-in-One" MTK (MediaTek) and Qualcomm flash tools.

Many "free download" links are wrappers for adware, trojans, or ransomware that can infect your PC.

Devices in Demo Mode are often intended strictly for display.