squidtastic wrote:
I have a 2015 Macbook Pro with Retina display running Monterey 12.6.1. Whenever either the return key or the backslash key is pressed it always returns a new line and then a backslash. I have removed the keys and cleaned them and put them back no problem but this behavior persists. Anyone have any ideas aside from going to the Apple store? Please and thank you!
Keys in a straight line, keys associated on a diagonal, Individual key failures—typically indicate a hardware issue.
Try a different keyboard and compare your results. wireless or cable connected to your MBP as a test.
Apple will test you MBP but may refuse service— see vintage and obsolete:
Obtaining service for your Apple product after an expired warranty - Apple Support
Any third party computer repair shop can replace the uppercase/keyboard assembly if parts are available(?)
ref: 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