[Xperia Z1 General] lagalaga:
I did play with this some more a bit. I copied all camera libs - and get a bootloop. If I exclude libmmcamera_interface.so, the phone boots. Of course, then the camera does not worl.

E/AndroidRuntime( 6055): FATAL EXCEPTION: main
E/AndroidRuntime( 6055): Process: com.sonyericsson.android.camera, PID: 6055
E/AndroidRuntime( 6055): java.lang.RuntimeException: Unable to resume activity {com.sonyericsson.android.camera/com.sonyericsson.android.camera.CameraActivity}: java.lang.RuntimeExcept
ion: Fail to get camera info
E/AndroidRuntime( 6055): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2836)
E/AndroidRuntime( 6055): at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2865)
E/AndroidRuntime( 6055): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2291)
E/AndroidRuntime( 6055): at android.app.ActivityThread.access$800(ActivityThread.java:144)
E/AndroidRuntime( 6055): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1246)
E/AndroidRuntime( 6055): at android.os.Handler.dispatchMessage(Handler.java:102)
E/AndroidRuntime( 6055): at android.os.Looper.loop(Looper.java:212)
E/AndroidRuntime( 6055): at android.app.ActivityThread.main(ActivityThread.java:5135)
E/AndroidRuntime( 6055): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime( 6055): at java.lang.reflect.Method.invoke(Method.java:515)
E/AndroidRuntime( 6055): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:877)
E/AndroidRuntime( 6055): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
E/AndroidRuntime( 6055): at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:132)
E/AndroidRuntime( 6055): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime( 6055): Caused by: java.lang.RuntimeException: Fail to get camera info
E/AndroidRuntime( 6055): at android.hardware.Camera._getCameraInfo(Native Method)
E/AndroidRuntime( 6055): at android.hardware.Camera.getCameraInfo(Camera.java:217)
E/AndroidRuntime( 6055): at com.sonyericsson.cameracommon.utility.StaticConfigurationUtil.<init>(StaticConfigurationUtil.java:42)
E/AndroidRuntime( 6055): at com.sonyericsson.cameracommon.utility.StaticConfigurationUtil.isForceSound(StaticConfigurationUtil.java:71)
E/AndroidRuntime( 6055): at com.sonyericsson.android.camera.ExtendedActivity.onResume(ExtendedActivity.java:301)
E/AndroidRuntime( 6055): at com.sonyericsson.android.camera.CameraActivity.onResume(CameraActivity.java:356)
E/AndroidRuntime( 6055): at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1192)
E/AndroidRuntime( 6055): at android.app.Activity.performResume(Activity.java:5310)
E/AndroidRuntime( 6055): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2826)
E/AndroidRuntime( 6055): ... 13 more

Some logcat:

I/CameraService( 319): Loaded "Sony Camera HAL" camera module
I/libcamera( 319): HAL_getNumberOfCameras: E
I/libcamera( 319): HAL_Camera_GetNumberOfCameras: HAL_gCameraNum=-1
E/cammw ( 319): E: cammw_link_get_camera_device_info: read size err 2192
E/cammw ( 319): E: cammw_camera_update_caps: get_camera_device_info err -111
E/cammw ( 319): E: cammw_link_get_camera_device_info: read size err 2192
E/cammw ( 319): E: cammw_camera_update_caps: get_camera_device_info err -111
I/libcamera( 319): HAL_getNumberOfCameras: X
[....]
E/mm-camera( 453): server_process_module_init:59, int mods
D/mm-camera-sensor( 453): module_sensor_init:4070 Enter
D/mm-camera-sensor( 453): sensor_init_probe:107 Open sensor_init subdev failed
E/mm-camera-sensor( 453): module_sensor_init:4102 failed
E/mm-camera( 453): isp_util_gen_hws_caps: integrating kernel vfe is pending
E/mm-camera( 453): isp_tintless_create: using BE stats for tintless!, isp main version = 28
E/mm-camera( 453): cpp_hardware_load_firmware:408, cpphw->hwinfo.version = 0x10010000
E/mm-camera( 453): vpe_hardware_find_subdev:683: no more media devices
E/mm-camera( 453): vpe_hardware_find_subdev:728: no vpe device found.
E/mm-camera( 453): vpe_hardware_create:31: error: cannot find vpe subdev
E/mm-camera( 453): vpe_module_create_vpe_ctrl:141, failed, cannnot create vpe hardware instance
E/mm-camera( 453): vpe_module_init:34 failed
E/mm-camera( 453): c2d_module_init:28 name=c2d
[...]
E/mm-camera-img( 453): img_core_get_comp:37] role 3 name qcom.cac
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[0] role 0 name qcom.wavelet
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[1] role 1 name qcom.hdr
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[2] role 2 name qcom.faceproc
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[3] role 3 name qcom.cac
E/mm-camera-img( 453): img_core_get_comp:47] find component role 3 name qcom.cac
E/mm-camera-img( 453): cac_comp_load:657] Error opening CAC library
[..]
E/mm-camera( 453): module_cac_init:1028] Error rc -6
E/mm-camera( 453): pproc_module_init:2402] cac module create failed
E/mm-camera( 453): module_imglib_create_port:1756 portname imglib_d2_i0
E/mm-camera-img( 453): img_core_get_comp:37] role 2 name qcom.faceproc
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[0] role 0 name qcom.wavelet
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[1] role 1 name qcom.hdr
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[2] role 2 name qcom.faceproc
E/mm-camera-img( 453): img_core_get_comp:47] find component role 2 name qcom.faceproc
W/linker ( 453): libmmcamera_faceproc.so has text relocations. This is wasting memory and is a security risk. Please fix.
E/mm-camera-img( 453): img_core_get_comp:37] role 1 name qcom.hdr
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[0] role 0 name qcom.wavelet
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[1] role 1 name qcom.hdr
E/mm-camera-img( 453): img_core_get_comp:47] find component role 1 name qcom.hdr
E/mm-camera-img( 453): hdr_comp_load:1139] HDR library loaded successfully
E/mm-camera-img( 453): img_core_get_comp:37] role 4 name qcom.gen_frameproc
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[0] role 0 name qcom.wavelet
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[1] role 1 name qcom.hdr
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[2] role 2 name qcom.faceproc
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[3] role 3 name qcom.cac
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[4] role 4 name qcom.gen_frameproc
E/mm-camera-img( 453): img_core_get_comp:47] find component role 4 name qcom.gen_frameproc
E/mm-camera-img( 453): frameproc_comp_load:811] Error opening frameproc library libmmcamera_chromaflash_lib.so
E/mm-camera( 453): module_imgbase_init:1068] Error rc -6
E/mm-camera( 453): module_imglib_create_topology:644] Can not init the module imglib_chroma_flash
E/mm-camera-img( 453): img_core_get_comp:37] role 4 name qcom.gen_frameproc
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[0] role 0 name qcom.wavelet
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[1] role 1 name qcom.hdr
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[2] role 2 name qcom.faceproc
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[3] role 3 name qcom.cac
E/mm-camera-img( 453): img_core_get_comp:42] comp_index[4] role 4 name qcom.gen_frameproc
E/mm-camera-img( 453): img_core_get_comp:47] find component role 4 name qcom.gen_frameproc
E/mm-camera-img( 453): frameproc_comp_load:811] Error opening frameproc library libmmcamera_optizoom_lib.so
E/mm-camera( 453): module_imgbase_init:1068] Error rc -6
E/mm-camera( 453): module_imglib_create_topology:644] Can not init the module imglib_optizoom
[..]
E/mm-camera-img( 453): frameproc_comp_load:811] Error opening frameproc library libmmcamera_ubifocus_lib.so
E/mm-camera( 453): module_imgbase_init:1068] Error rc -6
E/mm-camera( 453): module_imglib_create_topology:644] Can not init the module imglib_ubifocus
E/mm-camera( 453): module_imglib_create_dummy_port:1878 portname imglib_dymmy_d1_i0
I/libcamera( 319): HAL_getNumberOfCameras: E
I/libcamera( 319): HAL_Camera_GetNumberOfCameras: HAL_gCameraNum=0
I/libcamera( 319): HAL_getNumberOfCameras: X
E/cammw ( 319): E: cammw_link_get_camera_device_info: read size err 2192
E/cammw ( 319): E: cammw_camera_update_caps: get_camera_device_info err -111
E/cammw ( 319): E: cammw_link_get_camera_device_info: read size err 2192
E/cammw ( 319): E: cammw_camera_update_caps: get_camera_device_info err -111
E/cammw ( 319): E: cammw_link_get_camera_device_info: read size err 2192
E/cammw ( 319): E: cammw_camera_update_caps: get_camera_device_info err -111
E/cammw ( 319): E: cammw_link_get_camera_device_info: read size err 2192
E/cammw ( 319): E: cammw_camera_update_caps: get_camera_device_info err -111