Google’s Android 10 Compatibility Definition Document (CDD) strongly discouraged third-party call recording, but it left a loophole: system apps preloaded by the OEM are exempt. EMUI 10 exploits this loophole. However, a critical change came with updates independent of the OS version. Starting in 2020, Google Play Services began revoking the CAPTURE_AUDIO_OUTPUT permission for any app not preloaded at the system image level.
One of the most sophisticated aspects of HWCallRecorder in EMUI 10 is its . Huawei faced legal challenges in countries like the US, Germany, and Japan where one-party consent is either absent or call recording is outright prohibited. Instead of removing the feature globally, Huawei implemented a dynamic check based on the SIM card’s MCC (Mobile Country Code) and the device’s current network registration. hwcallrecorder emui 10