When referring to "removing firmware by link," it's essential to understand that typically, OTA updates are pushed to devices automatically or can be manually triggered to download and install. However, there are scenarios where users might look to manually intervene with firmware or specifically remove an update.
: Some services can remove the MDM lock remotely by accessing the device's technical backend via a computer connection. Technical Prerequisites If you plan to attempt this yourself, you generally need: A Windows PC with the latest Oppo USB drivers installed. The Specific Firmware : You must match the model number ( ) exactly to avoid hard-bricking the device. A Flashing Tool
Standard procedures often include flashing a "special" firmware that has the OTA (Over-The-Air) update application removed or disabled to prevent the MDM lock from returning during a system update. Important Precautions