My laptop doesn't have sound after disassembling and cleaning

Solution
Check Device Manager for any clues.

If you see "unknown device" (question mark), chances are it just needs the sound driver re-installing.

If you see no error symbols in DM, and sound device isn't listed, usually means the sound device is faulty or damaged to the extent that it can no longer be detected by Windows.
Check Device Manager for any clues.

If you see "unknown device" (question mark), chances are it just needs the sound driver re-installing.

If you see no error symbols in DM, and sound device isn't listed, usually means the sound device is faulty or damaged to the extent that it can no longer be detected by Windows.
 
Solution