Touch Bar not working

Shark-Mac wrote:

My Mac Touch Bar was working but not lighting up,

but now it’s fully dead!

On an Intel Mac if software issue the best you can do—

Try resetting the System Management Controller Reset the SMC of your Mac - Apple Support

Try resetting NVRAM/PRAM Reset NVRAM on your Mac - Apple Support

(get at least two-three rounds of the chimes when holding the NVRAM Reset)

For hardware issues take it in—

In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment

Make an appointment for a "hardware issue"

Genius Bar Reservation and Apple Support Options - Apple

Outside the USA

Contact Apple for support and service - Apple Support