[Android Q&A, Help & Troubleshooting] artbreguez:
Here some logs

06-20 21:04:15.902 16876 16876 F DEBUG : #08 pc 00003ceb /vendor/lib/hw/android.hardware.camera.provider@2.4-impl.so (virtual thunk to android::hardware::camera::provider::V2_4::implementation::CameraProvider<android::hardware::camera::provider::V2_4::implementation::ExternalCameraProviderImpl_2_4>::~CameraProvider()+75) (BuildId: 61f370932646d54b04cc68702a95f8fa)
06-20 21:04:15.902 16876 16876 F DEBUG : #12 pc 00001aee /vendor/bin/hw/android.hardware.camera.provider@2.4-external-service (BuildId: e02058b00fe96b518e5b0b850ff2870c)
06-20 21:04:15.902 16876 16876 F DEBUG : #13 pc 00001993 /vendor/bin/hw/android.hardware.camera.provider@2.4-external-service (main+179) (BuildId: e02058b00fe96b518e5b0b850ff2870c)
06-20 21:04:20.913 16884 16884 I android.hardware.camera.provider@2.4-service: CameraProvider@2.4 legacy service is starting.
06-20 21:04:20.913 16883 16883 I android.hardware.camera.provider@2.4-external-service: External camera provider service is starting.
06-20 21:04:20.925 16884 16884 E CamPrvdr@2.4-legacy: Could not load camera HAL module: -2 (No such file or directory)
06-20 21:04:20.925 16884 16884 E android.hardware.camera.provider@2.4-service: getProviderImpl: camera provider init failed!
06-20 21:04:20.925 16883 16883 I ExtCamUtils@3.4: loadFromCfg: load external camera config succeed!
06-20 21:04:20.925 16883 16883 I ExtCamUtils@3.4: loadFromCfg: device 0 will be ignored by external camera provider
06-20 21:04:20.926 16883 16883 I ExtCamUtils@3.4: loadFromCfg: external camera cfg loaded: maxJpgBufSize 3145728, num video buffers 4, num still buffers 2, orientation 0
06-20 21:04:20.926 16883 16883 E HidlServiceManagement: Service android.hardware.camera.provider@2.4::ICameraProvider/external/0 must be in VINTF manifest in order to register/get.
06-20 21:04:20.926 16883 16883 E LegacySupport: Could not register service android.hardware.camera.provider@2.4::ICameraProvider/external/0 (-2147483648).
06-20 21:04:20.928 16884 16884 E LegacySupport: Could not get passthrough implementation for android.hardware.camera.provider@2.4::ICameraProvider/legacy/0.
06-20 21:04:20.934 16888 16888 F DEBUG : pid: 16883, tid: 16883, name: android.hardwar >>> /vendor/bin/hw/android.hardware.camera.provider@2.4-external-service <<<
06-20 21:04:20.937 16888 16888 F DEBUG : #06 pc 0000e293 /vendor/lib/android.hardware.camera.provider@2.4-external.so (android::hardware::camera::provider::V2_4::implementation::ExternalCameraProviderImpl_2_4::HotplugThread::~HotplugThread()+99) (BuildId: c893ccbbe5cfdc71842b89443e84b793)
06-20 21:04:20.937 16888 16888 F DEBUG : #07 pc 0000e12d /vendor/lib/android.hardware.camera.provider@2.4-external.so (android::hardware::camera::provider::V2_4::implementation::ExternalCameraProviderImpl_2_4::~ExternalCameraProviderImpl_2_4()+45) (BuildId: c893ccbbe5cfdc71842b89443e84b793)
06-20 21:04:20.937 16888 16888 F DEBUG : #08 pc 00003ceb /vendor/lib/hw/android.hardware.camera.provider@2.4-impl.so (virtual thunk to android::hardware::camera::provider::V2_4::implementation::CameraProvider<android::hardware::camera::provider::V2_4::implementation::ExternalCameraProviderImpl_2_4>::~CameraProvider()+75) (BuildId: 61f370932646d54b04cc68702a95f8fa)
06-20 21:04:20.937 16888 16888 F DEBUG : #12 pc 00001aee /vendor/bin/hw/android.hardware.camera.provider@2.4-external-service (BuildId: e02058b00fe96b518e5b0b850ff2870c)
06-20 21:04:20.937 16888 16888 F DEBUG : #13 pc 00001993 /vendor/bin/hw/android.hardware.camera.provider@2.4-external-service (main+179) (BuildId: e02058b00fe96b518e5b0b850ff2870c)
06-20 21:04:24.573 150 281 E CameraService: cameraIdIntToStrLocked: input id 0 invalid: valid range (0, 0)
06-20 21:04:24.573 150 281 I CameraService: CameraService::connect call (PID -1 "com.whatsapp", camera ID ) for HAL version default and Camera API version 1
06-20 21:04:24.573 150 281 E CameraService: shouldRejectSystemCameraConnection: Invalid camera id ,
06-20 21:04:24.573 150 281 W CameraService: Attempting to connect to system-only camera id , connection rejected
06-20 21:04:24.573 1455 16941 W CameraBase: An error occurred while connecting to camera 0: Status(-8, EX_SERVICE_SPECIFIC): '4: validateClientPermissionsLocked:1158: No camera device with ID "" isavailable'
06-20 21:04:25.914 17093 17093 I android.hardware.camera.provider@2.4-external-service: External camera provider service is starting.
06-20 21:04:25.920 17094 17094 I android.hardware.camera.provider@2.4-service: CameraProvider@2.4 legacy service is starting.
06-20 21:04:25.932 17093 17093 I ExtCamUtils@3.4: loadFromCfg: load external camera config succeed!
06-20 21:04:25.932 17093 17093 I ExtCamUtils@3.4: loadFromCfg: device 0 will be ignored by external camera provider
06-20 21:04:25.932 17093 17093 I ExtCamUtils@3.4: loadFromCfg: external camera cfg loaded: maxJpgBufSize 3145728, num video buffers 4, num still buffers 2, orientation 0
06-20 21:04:25.932 17093 17093 E HidlServiceManagement: Service android.hardware.camera.provider@2.4::ICameraProvider/external/0 must be in VINTF manifest in order to register/get.
06-20 21:04:25.932 17094 17094 E CamPrvdr@2.4-legacy: Could not load camera HAL module: -2 (No such file or directory)
06-20 21:04:25.933 17093 17093 E LegacySupport: Could not register service android.hardware.camera.provider@2.4::ICameraProvider/external/0 (-2147483648).
06-20 21:04:25.933 17094 17094 E android.hardware.camera.provider@2.4-service: getProviderImpl: camera provider init failed!
06-20 21:04:25.935 17094 17094 E LegacySupport: Could not get passthrough implementation for android.hardware.camera.provider@2.4::ICameraProvider/legacy/0.
06-20 21:04:25.942 17101 17101 F DEBUG : pid: 17093, tid: 17093, name: android.hardwar >>> /vendor/bin/hw/android.hardware.camera.provider@2.4-external-service <<<
06-20 21:04:25.945 17101 17101 F DEBUG : #06 pc 0000e293 /vendor/lib/android.hardware.camera.provider@2.4-external.so (android::hardware::camera::provider::V2_4::implementation::ExternalCameraProviderImpl_2_4::HotplugThread::~HotplugThread()+99) (BuildId: c893ccbbe5cfdc71842b89443e84b793)
06-20 21:04:25.945 17101 17101 F DEBUG : #07 pc 0000e12d /vendor/lib/android.hardware.camera.provider@2.4-external.so (android::hardware::camera::provider::V2_4::implementation::ExternalCameraProviderImpl_2_4::~ExternalCameraProviderImpl_2_4()+45) (BuildId: c893ccbbe5cfdc71842b89443e84b793)
06-20 21:04:25.945 17101 17101 F DEBUG : #08 pc 00003ceb /vendor/lib/hw/android.hardware.camera.provider@2.4-impl.so (virtual thunk to android::hardware::camera::provider::V2_4::implementation::CameraProvider<android::hardware::camera::provider::V2_4::implementation::ExternalCameraProviderImpl_2_4>::~CameraProvider()+75) (BuildId: 61f370932646d54b04cc68702a95f8fa)
06-20 21:04:25.945 17101 17101 F DEBUG : #12 pc 00001aee /vendor/bin/hw/android.hardware.camera.provider@2.4-external-service (BuildId: e02058b00fe96b518e5b0b850ff2870c)
06-20 21:04:25.945 17101 17101 F DEBUG : #13 pc 00001993 /vendor/bin/hw/android.hardware.camera.provider@2.4-external-service (main+179) (BuildId: e02058b00fe96b518e5b0b850ff2870c)