CarlosAlfaro wrote:
Hello, thanks for your reply, I did it, I have tried with the SMC and NVRAM, however nothing changed, the laptop still without light in the Touch Bar.
Last effort a SafeBoot How to use safe mode on your Mac - Apple Support will sort many anomalies
if no resolve I would suspect hardware issue..
you can try the Diagnostic..., but may kick out an error code.
Use Apple Diagnostics to test your Mac
Use Apple Diagnostics to test your Mac - Apple Support
if no insight take it in Apple's own AST2 (Apple Service Toolkit) back bench diagnostic is more definitive
In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test /assessment at Apple® in the USA
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