Moving back to an older version of OxygenOS.
If you are trying to or change your phone's region (e.g., ColorOS to OxygenOS), let me know the exact model number (like NE2211 or NE2215) and I can look for the specific guide for your version.
Manually switching between regional firmware versions (e.g., ColorOS to OxygenOS). OnePlus Community Alternatives and Community Workarounds
Some versions require a login. Use the default credentials:
Oneplus 10 Pro Msm Tool
Moving back to an older version of OxygenOS.
If you are trying to or change your phone's region (e.g., ColorOS to OxygenOS), let me know the exact model number (like NE2211 or NE2215) and I can look for the specific guide for your version. oneplus 10 pro msm tool
Manually switching between regional firmware versions (e.g., ColorOS to OxygenOS). OnePlus Community Alternatives and Community Workarounds Moving back to an older version of OxygenOS
Some versions require a login. Use the default credentials: ColorOS to OxygenOS)