macbook 2017 webcam issues killing laptop

The Apple Diagnostic errors are telling you that you have multiple hardware issues with the Logic Board on this laptop. You will need to have Apple or an Apple Authorized Service Provider examine the laptop to provide you with a repair estimate.

tofiq94 wrote:

@hwtech i got this laptop for 280$ and dont wanna spend more 300+ to apple service)

Now you know why you got the laptop for so cheap. It is broken.

there many bad feedbacks about their useless service, they are requesting change motherboard for many many $$$ instead of repairing or changing broken part.

Sometimes there are problems with certain techs or service locations in some regions. Sometimes there are misunderstandings about coverage as well (both techs & users). A Logic Board will be a very expensive repair since today's Apple Logic Boards include a lot of other components that used to be separate individual components (wireless, SSD, memory, etc.). The Logic Board is the part they will be changing, so I'm not sure what you mean. Apple hasn't repaired a user's Logic Board since the Apple II and early Macintosh days back in the 80's and early 90's. Since that time Apple replaces whole components with refurbished parts as do most other OEMs.

There may be third party repair shops/techs who may repair the Logic Board itself for you, but those repairs will usually be expensive as well. Plus the skills of some of people performing those very difficult unauthorized repairs can vary greatly.

and second, apple diagnostic utility lying me, after disconnecting webcam 2 other errors gets off.

Seems like it is telling you the truth. You disconnect something, so I would hope the diagnostic would report that. The webcam has the camera and ambient light sensor which are two separate items. Not sure what you think is wrong here.