Especially if you’re using a laptop, updating your software can help solve keyboard-related issues. - Go to Control Panel then look for Ease of Access - Click on Change how your keyboard works. Open the keyboard by … Press Windows + S, type ‘Settings’ in the dialogue box and open the application. If the " symbol on your keyboard is above the 2, you have a UK English Keyboard In options if the appropriate language does not appear, click 'Add input Method' Add the appropriate language if necessary Move the appropriate language to the top, if necessary Make that the default language IMPORTANT - delete any language(s) not required These 3 pins control those keys, according to the schematic I found online. The 'Keyboard Viewer', available through this torturous process: System preferences > Keyboard > Input Sources ... ... then check [√] show Input Menu in MenuBar. My keyboard is working unless the left shift,ctrl and option key. Wait a few seconds, then press the power button to turn on your Mac. Restarting didn't help, and I couldn't run many of the start-up options because of the keys not working. As stated earlier, some keyboards come with a software program, and you must install them to avoid multiple keyboard errors, one of them being of shift key not working. We can try to disable sticky keys and see if this does the trick. Update macOS. Check if the keyboard is working, if not, then move to the next method. You may also have a software issue. Boot into recovery manager from F11 and open a command prompt and check if it's typing incorrect letters. Now make sure that ‘Sticky Keys’ are … This is because some … Note that only Intel-based Mac computers have an SMC. then click the Input Menu icon in the MenuBar, and choose 'Keyboard Viewer'. Keep holding all four keys for another 7 seconds, then release them. Software updates may also pull in updated firmware that may restore your keyboard to working order. As more people encounter the same problem it seems not an issue with the keyboard itself. 04/25/2017 by Samuel Geurts. I reset the SMC by removing the battery and holding down the power button. Wait for 30 seconds or so and Power On your laptop. Yesterday the shift stopped working most of the time (it works 1/100) suddenly (did not spill anything), and the weird thing is that today the Control & Option keys joined the party — they stopped working (only left keys). It happened all of a sudden while working in Logic. On a laptop, plugging in another keyboard will at least let you try the following steps. Based on these observation, I conclude that in my case, it is hardware problem.. Keep holding all three keys for 7 seconds, then press and hold the power button as well. It is also prudent to learn that some third party programs related to keyboard can cause the shift keys not working problem. Press Windows + S, type ‘Settings’ in the dialogue box and open the application. You should try resetting the SMC to see if this fixes your keyboard. Most of the time, this why Shift key is not working properly on many keyboards. I too have these 3 keys not working, even after replacing with a brand new keyboard. Hold the MacBook at a 75-degree angle and, in a left to right motion, spray air across the keys. I have a mid 2012 macbook pro unibody 15" and the left shift/option/control keys do not work. 1) Shut down your MacBook Air. Upon inspection of the keyboard ribbon socket on the logic board, the 3 first pins appear damaged. - Uncheck where it says Turn on Sticky Keys and click OK. Select ‘Ease of Access’ from the list of options available. It could also be that your keyboard drivers are not working as they should and hence the possible cause of keys not working. Clean Keyboard. Most of the time, this why Shift key is not working properly on many keyboards. As you mentioned the left shift key is not working on your PC anymore. It's a MacBook Pro "Core i7" 2.2 15" Mid-2015 (IG) (MJLQ2LL/A). 2) Press the Shift, Control and Option keys on the left side on your keyboard and the Power … Select ‘Ease of Access’ from the list of options available. Select ‘Keyboard’ using the left navigation pane present at the left side of the screen. This could be a result of some missing keyboard drivers or your delay in updating each of them. We can try to disable sticky keys and see if this does the trick. If your Mac is on, it will turn off as you hold the keys. As mentioned in the beginning, the MacBook Pro keyboard may not work properly if there’s some debris or dust stuck between the keys. Select ‘Keyboard’ using the left navigation pane present at the left side of the screen. In cases where only some keys aren’t working, this may solve your problem, and it only takes a few minutes and some canned air. Try few steps recommended below. My left side command, option, control, function, and shift keys do not work as of yesterday.