The systems of OnePlus and OPPO phones were different in the past, with OnePlus using hydrogen OS and OPPO using ColorOS. However, starting in 2021, the OnePlus phone has been fully replaced with the same ColorOS system as OPPO, so now the OnePlus and OPPO systems are the same. However, it should be noted that although the system name is the same, each mobile phone manufacturer's configuration is different, and it must be adapted and modified according to the hardware configuration of its own mobile phone, so each other may become brick.