, Oppo’s software skin used for the Chinese market, instead of the found on Global versions. The Bloatware:

OnePlus 9 Pro Chinese version ( ) and Global version ( , etc.) are physically nearly identical but differ significantly in software, network compatibility, and official support. While the Chinese model is often cheaper, it may require technical modifications to function like a standard Global unit OnePlus Community Core Differences at a Glance Chinese Version (CN) Global Version Out-of-box OS ColorOS (previously HydrogenOS) Google Services Not pre-installed (must be sideloaded) Fully integrated (Play Store, Maps, etc.) 5G/4G Bands Optimized for Chinese carriers; fewer total bands Wide range of global bands, including mmWave (US) SIM Support Dual physical Nano-SIM Single or Dual SIM; often supports eSIM Valid only in mainland China Local regional warranty applies Global rom OR Global version? - OnePlus Community

Flashing Chinese → Global (brief)