Hello again, Daikusan.
Daikusan wrote: ... I will give a further update when Tokyo service center tells me what they fixed.
Good plan. We will watch for your outcome report.
Daikusan wrote: ... un-branded OS X ... during branding ...
I don't understand what "branding" means. If its meaning is still relevant to your issue, when you post back, please explain what you mean by "branded" / "branding" and ask any specific questions you may have.
Daikusan wrote: ... I don’t know if the battery has anything to do with the camera not operating properly....
I think there is zero percent possibility that this is a battery issue. If it were, your Mac would operate properly when connected to wall power (mains.)
Daikusan wrote: ... Things I learned during my troubleshooting:
The upgrade form OS X Yosemite to El Capitan should have removed the old OS X apps and reinstalled them. I still had the problem after the upgrade and with a clean install of El Capitan...
The most probable reason that the problem continued after upgrading to El Capitan is that the trouble is not caused by software. Therefore the new apps installed by El Capitan would not work either.
Daikusan wrote: ... Things I learned during my troubleshooting:
... El Capitan no longer has a secure erase/delete feature ... in the Disk Utilities.... it’s gone in El Capitan...
Strictly speaking, Secure Erase is not gone from El Capitan. It is only gone from most locations in El Capitan's Disk Utilities. Although there are several nuanced individual exceptions, the following case applies to your particular circumstance:
It is true that your Secure Erase feature is not available for the start up disk in your
El Capitan's (version 15.x) Disk Utilities when you have booted into El Capitan. However, Secure Erase is still available if you boot into OS X Recovery anduse its Disk Utilities. In order to access Secure Erase, you must select the iCon for OS X start-up volume, not the iCon for the entire Mac physical hard disk.
If you have additional questions or need additional information about El Capitan Secure Erase, you will benefit from searching or starting a separate topic on the subject in El Capitan discussions.
Message was edited by: EZ Jim
Mac OSX 10.11.5