#Macbook pro retina trackpad update update#
#Macbook pro retina trackpad update Bluetooth#

It’s absolutely crazy: I've learned here that the Trackpad preferences don't show up properly (and instead present the image of the Apple’s Magic (Bluetooth) Trackpad, as seen in the now striked screenshot above), if the battery is not present.

#Macbook pro retina trackpad update update#

***) Update 1: Trackpad now shown again in System Settings > Trackpad. Or it’s an active on-board component which is in charge of the tactile engine and passed away. The only thing I could imagine is either a hiccup in the board’s EFI or that the tension on the trackpad’s flex cable due to the bloated battery has lifted the FPC connector on the board (though nothing’s visible under a magnifier). bloated battery might lead to broken flex cable, but I've replaced that already twice and even tried replacing the trackpad as such, as you can read above). swapping the SSD (!) with a different macOS versionĪpple Diagnostics (formerly known as AHT Apple Hardware Test 'D' at boot) reports no damage/error.booting in Recovery Mode, erasing the SSD Volume group, restarting and installing Big Sur from bootable macOS Installer USB drive.installation of two identical, known to be good Trackpad assemblies 810-00149-A.

installation of two identical, known to be good Trackpad Flex Cables 821-00184-A.

Re missing trackpad: According to System Profiler > SPI the trackpad is there.

#Macbook pro retina trackpad update Bluetooth#

When opening System Preferences > Trackpad, it tells me that it doesn't find the trackpad and shows me a bluetooth connected Magic Trackpad, to which it would like to connect (perhaps as alternative as it thinks it's missing the internal trackpad, however there never was such a Magic Trackpad paired with that MBPR). No water damage, machine is otherwise in perfect condition.

If I recall correctly the tactile engine/haptic feedback worked when I received the machine, but either stopped due to the further bloating battery or in the process of updating the macOS (which also has updated the board’s EFI). The machine had a bloating battery (which I've removed new battery waiting to be installed, once following trackpad problem is resolved). I have a 13' MBPR Early 2015 (A1502) here on which the internal trackpad fully works, but doesn't provide tactile feedback. FYI: Apple veteran (first Mac 1989), would call myself a Pro (unfortunately not at board level).