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2015年3月更新的 13 英寸 MacBook Pro 配备 Retina 显示屏,型号为A1502,采用第五代英特尔酷睿 i5 和 i7 处理器,并配备 Force Touch触控板。

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MacBook Pro 13" - Keyboard and trackpad working intermittently

Hi,

The trackpad and keyboard on my MacBook Pro 13" early 2015 (A1502) running macOS 13.4 have recently stopped working fully. No liquid spills. Battery was replaced about a year ago and according to Coconutbattery was fine as of a week ago.

What's happened so far:

Keyboard and trackpad would become non-responsive very occasionally. Simple restart via power button would fix this. This first started occurring a few weeks ago.

A few days ago it happened again but a restart didn't fix the issue. Power button works and once at the login screen the only thing that worked was the haptic feedback on the trackpad. Plugging in a bluetooth mouse works, I don't have access to a external keyboard at the moment.

Oddly, SMC (shift + control + option + power) and NVRAM (option + command + p + r) reset keyboard shortcuts seem to work as after the former would cause the fan to spin at full speed upon startup and the latter changed the resolution of the user icon at login. Command + p on startup brings up the recovery assistant, using the power button at this stage brings up the recovery assistant again but using an external mouse + restart option returns the login page.

I can't seem to bring up the disk utility on start up to reinstall macOS so the keyboard isn't reliable.

Possible fixes:

Replace keyboard/trackpad flex cable

Reinstall macOS

Erase Mac and then restore from Time Machine

Thoughts?

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Well this system uses discrete ribbon cables from the keyboard and trackpad to the logic board. Even still a messed up keyboard or trackpad can mess up the internal USB connection from either. Often I find the trackpad cable fails which then messes up the keyboards signals. I would try replacing it follow this guide MacBook Pro 13" Retina 显示屏 2015早期 触摸板更换 this cable is a bit tricky!

As the battery charges and discharges it will alter its shape even with a new battery. Think it like breathing! As long as the cable has give there is no issues. It’s when you put the cable back you might not have allowed enough give on each side. Also we don’t want a bent cable either! So don’t fold it creasing it as that will weaken the thin copper foil wires within it. I use an old BIC pen ink straw as a forming break to curl the cable where the bends are needed. Don’t bend the cable beyond the radius of this straw. I also pull the adhesive strip cover after I’ve placed the cable and connected it.

Here’s the needed part MacBook Pro 13" Retina (Early 2015) Trackpad Cable

MacBook Pro 13" Retina (Early 2015) Trackpad Cable图片

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MacBook Pro 13" Retina (Early 2015) Trackpad Cable

$9.99

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Irwin Selvam 将永远感激不已
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