In most cases, the unresponsive keyboard and trackpad issue occurs because of the reasons not associated with any updates. However, some Apple computer owners believe various system and software upgrades could be the point.
Causes and Effects
It is important to analyze the symptoms before deciding on the diagnosis:
- Keyboard and trackpad turn unresponsive;
- The issue is intermittent during the regular computer work, but frequently emerges at the bootup when keyboard and trackpad do not react to user’s actions;
- USB mouse and keyboards are completely functional while onboard analogues don’t work;
- Regular kernel panics (as a rule, they take place after the keyboard and trackpad face exceeded intermittent “on and off” periods). In this situation, a single solution is a hard-reboot.
Things a User Should Try First
Before digging deeper, try resolving the problems described above with the help of these ideas:
- Reset the PMU (Power Management Unit).
- Check the battery recall issue.
- Try pressing the Function+S buttons altogether at boot up. Then, run /sbin/fsck.
- Reinstall the operating system.
Can you notice any positive result? If no, move to the next advice.
In-depth Research and Its Results
To begin with, you should know it is a hardware problem you face. You may try restarting and doing tricks with the battery (placing it in and out of the device), but it might not work. These actions may restore computer’s functionality in many cases, but not the one associated with unresponsive keyboard and trackpad.
Of course, you can discover a section of copper-colored tape/wiring disrobed in the batter slot, which is just a bit bowed where it is tiniest. Try depressing this with your hands. Gently touch the portion with the finger to align it against the housing.
Grab a piece of napkin and tape it down to develop pressure on this portion of bowed tape/wiring.
Another Technical Solution: Clear Your PRAM
PRAM abbreviation stands for the Parameter Random Access Memory. Clearing it helps in many situations.
- Turn off the target Apple computer first. No sleep or logged out modes!
- Push the Power button.
- Apply the combination of Command+Option+P+R keys. Check whether that combination is activated prior to the gray screen appears on your Mac.
- Do not let the key combination go until the target device restarts once again. Wait for the bootup chiming sound.
- Release the key combination. Now, it is time for the computer to restart in a regular
What about the SMC Reset?
System Management Controller (SMC) misbehavior may be the cause of many technical problems with Mac. That is why resetting it often helps. Here are the steps a Mac owner with unresponsive keyboard and trackpad should do:
- Switch off the target Mac computer.
- Connect the power adapter to the device.
- Shift, Control, and Options buttons along with the power button are right what you need to push and hold at the same time.
- Let the combination of buttons go altogether. Pay attention to the MagSafe adapter. It might start changing colors shortly to detect that SMC was successfully reset.
- Start your Apple computer in a regular mode.
Do not worry that the startup will take a bit longer than usual once you reset SMC – that’s normal. By resetting SMC, a user risks losing specific power settings. Those are the period a computer should fall asleep and some other customizations. Do not forget to adjust those settings again in the corresponding menu.
On the whole, this method works when some other signs of problems with Mac are present:
- Power control and battery issues;
- Problems with cooling fans and their management;
- Gaps in the world of light and lightning regulation;
- Video and external displays refusing to function properly;
- Overall Mac’s poor performance.