If you have a valid proof of purchase, the official Vivo or OPPO support teams can often unlock the device for you safely. How to Unlock Your Phone When You Can't Remember Password
Unlock and FRP (Factory Reset Protection) removal tools for and OPPO devices typically offer a suite of features designed to bypass security locks after a factory reset or forgotten password. Key Features If you have a valid proof of purchase,
Supports specialized "Brom Mode" or Auth bypass for MediaTek-based Vivo and OPPO models. Some professional tools attempt to remove screen locks
Some professional tools attempt to remove screen locks on older models without wiping personal data, though most modern versions will erase everything. Popular Tools & Methods and deep system flashing. Tenorshare 4uKey
One-click FRP removal, IMEI repair, and deep system flashing. Tenorshare 4uKey , Appgeeker Android Unlocker
Almost all screen lock removal methods will completely erase your photos, contacts, and files.