Why did my internal keyboard and trackpad stop working?

If it is out of warranty, you may want to look at the connector where the cable coming from the trackpad and the keyboard connect to the main mother board.

I've seen a few with crud on the keyboard connector, and cleaning (once it also needed reflowing the connections) fixed it.

I may be wrong, but I think at the time we are writing this, Apple is facing an issue with these keyboard and trackpad failures, and requiring Apple service providers to run a diagnostic test on all laptops they receive (regardless of reason they came in for) while the laptop is connected to a server that feeds the info back to Apple. A program may be in the making.

Most likely the trackpad cable. On the 2015 models, if the trackpad cable is not plugged into the logic board, the keyboard and trackpad will not work. I have come across a few where the keyboard and trackpad will intermittently not work, reboot usually temporarily fixes it, but in all cases the trackpad cable has been the issue. Sometimes the cable looks fine, sometimes it has slight liquid damage.

It is very easy to replace (remove bottom cover, disconnect battery, then disconnect the cable) and it is very cheap. Try this first, and it should sort out your problem.

Hello, I just had the same issue this month. The keyboard and the trackpad both stopped working and the only was to fix it was to reboot. I also noticed in the log the message:

"Error: AppleHSSPIController::doSPITransfer NAK received from device" followed every time by

"Error: AppleHSSPIController::doSPITransfer CRC from device was invalid: compu..." and sometimes

"Error: AppleHSSPIController::InterruptOccurred Failed to transfer interrupt data with Err (0x00002eb)".

My MBP Early 2015 was still under warranty and the support told me it was related to a connector between the trackpad and the keyboard formally called "SVC,CABLE,IPD FLEX,HA COPPER,13" MBP" on the invoice. The Apple's Genius ran some diagnostic tests but he show me the results and everything was 100% fine, including the top case.

The repair costs 89€ in France (10€ for the cable itself, 79€ for the hardware fix). Hopefully the repair only takes up to 48 hours (or so they told me, it's been around 5 hours and I'm patiently waiting, I already brought my MBP for other issues and the repairs were fast).

Spilled coffee on my mac, brought my mac to the store and it came out fine. Used it for more than a year and out of nowhere trackpad and keyboard working intermittently.

Same issue and they only replaced IPD FLEX CABLE. Funny because Apple store in the Philippinrs said that they also have to change battery and topcase but when diagnosed here in China, they only said the IPD FLEX CABLE is the only thing they changed. They saved me money but not 100% sure if the problem pops up again. Still have to retrieve my MacBook pro 2015 retina, this week.

Hello, I have the same problem but even after I changed the trackpad cable after 2 months the trackpad and keyboard not worked again. Does anyone have any idea what causes the problem?

Had the same problem with my MacBook Pro 13". It started with my trackpad failing, but after restarting the computer it would work again, or after leaving it cool down. Still, as time passed by, it stopped working at all and the keyboard started to fail as well, so I was left without trackpad nor keyboard to use my Mac. Sadly, the problem started after the warranty expired and I was living in Colombia (a country with limited Apple support). I decided to wait until I came back to US and scheduled an appointment. They charged me about 96usd, 79usd for the technical support and 10.23usd for the hardware cable ("SVC,CABLE,IPD FLEX,HA COPPER,13" MBP" - Part Number: 923-01376), plus tax. It started working perfect immediately and the tech guy just took like 15 minutes to do the repair. That even fixed a problem my computer had of not sleeping, probably because of the malfunction of the keyboard and the external mouse, can't really tell why. But still, the fix is recent so I'll wait a few months to know if the issue is really fixed. I didn't want to mess with the hardware myself, specially not knowing what the problem was neither the exact part to replace... but if someone can't get to an Apple store and have this same problem, they should just look carefully for the part on eBay or somewhere else, buy the tools (special screwdrivers for Macs) and change that cable themselves.