On the most part there are two issues that cause a keyboard key/s failure a liquid spill (or food crumbs) or the battery is selling up pressing from below.
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On the most part there are two issues that cause a keyboard key/s failure a liquid spill (or food crumbs) or the battery is pressing up from below.
If you only have one key failing I would pop the keycap off and see if dusting out any crumbs or with a cotton swab (Q-Tip) just barely damp with isopropyl alcohol clean the area. Here's a vid showing how to pop them off to clean under them: [https://www.bing.com/videos/search?q=YouTube+MacBook+Pro+keycaps&&view=detail&mid=C0169667CCE4EDD2B71DC0169667CCE4EDD2B71D&rvsmid=A2AC80DC44B891D00C14A2AC80DC44B891D00C14&FORM=VDQVAP|How to remove and clean Macbook Pro keyboard keys].
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If you spilled liquid into the keyboard over time the other keys could give out. You may need to go inside to either replace the whole uppercase (easiest but expensive!) or replace the discreet keyboard (more work but cheaper!). In either case you'll need to follow this IFIXIT guide: [https://www.ifixit.com/Guide/MacBook+Pro+15-Inch+Retina+Display+Mid+2012+Upper+Case+Assembly+Replacement/9736|MacBook Pro 15" Retina Display Mid 2012 Upper Case Assembly Replacement] Go on Amazon or eBay to locate a replacement keyboard. Make sure you get the screws! some forget you need them to replace the pop rivets.
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If you spilled liquid into the keyboard over time the other keys could give out. You may need to go inside to either replace the whole uppercase (easiest but expensive!) or replace the discreet keyboard (more work but cheaper!). In either case you'll need to follow this IFIXIT guide: [guide|9736|MacBook Pro 15" Retina Display Mid 2012 Upper Case Assembly Replacement] Go on Amazon or eBay to locate a replacement keyboard. Make sure you get the screws! some forget you need them to replace the pop rivets.
If you suspect the battery is swelling then you'll need to replace it ASAP so it doesn't damage things. To see if the battery is going I would use this gem of an app: [http://www.coconut-flavour.com/coconutbattery/|CoconutBattery] post a screenshot so we can see what its telling us of the full main screen.
Here's the IFIXIT guide you'll need to follow: [guide|45137|MacBook Pro 13" Retina Display Early 2015 Battery Replacement] and here's the battery you'll need: [product|IF123-054-4|MacBook Pro 13" Retina (Early 2015) Battery]
One rub here is the battery can only be shipped by ground so depending on were you are you may need to find an alternative source for the battery or travel to somewhere where you can get it.
On the most part there are two issues that cause a keyboard key/s failure a liquid spill (or food crumbs) or the battery is selling up pressing from below.
If you only have one key failing I would pop the keycap off and see if dusting out any crumbs or with a cotton swab (Q-Tip) just barely damp with isopropyl alcohol clean the area. Here's a vid showing how to pop them off to clean under them: [https://www.bing.com/videos/search?q=YouTube+MacBook+Pro+keycaps&&view=detail&mid=C0169667CCE4EDD2B71DC0169667CCE4EDD2B71D&rvsmid=A2AC80DC44B891D00C14A2AC80DC44B891D00C14&FORM=VDQVAP|How to remove and clean Macbook Pro keyboard keys].
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If you spilled liquid into the keyboard over time the other keys could give out. You may need to go inside to either replace the whole uppercase (easiest but expensive!) or replace the discreet keyboard (more work but cheaper!). In either case you'll need to follow this IFIXIT guide: [https://www.ifixit.com/Guide/MacBook+Pro+15-Inch+Retina+Display+Mid+2012+Upper+Case+Assembly+Replacement/9736|MacBook Pro 15" Retina Display Mid 2012 Upper Case Assembly Replacement] Go on Amazon or eBay to locate a replacement keyboard. Make sure you get the screws! some forget you need them to replace the pop rivets.
If you suspect the battery is swelling then you'll need to replace it ASAP so it doesn't damage things. To see if the battery is going I would use this gem of an app: [http://www.coconut-flavour.com/coconutbattery/|CoconutBattery] post a screenshot so we can see what its telling us of the full main screen.
Here's the IFIXIT guide you'll need to follow: [guide|45137|MacBook Pro 13" Retina Display Early 2015 Battery Replacement] and here's the battery you'll need: [product|IF123-054-4|MacBook Pro 13" Retina (Early 2015) Battery]
One rub here is the battery can only be shipped by ground so depending on were you are you may need to find an alternative source for the battery or travel to somewhere where you can get it.
On the most part there are two issues that cause a keyboard key/s failure a liquid spill (or food crumbs) or the battery is selling up pressing from below.
If you only have one key failing I would pop the keycap off and see if dusting out any crumbs or with a cotton swab (Q-Tip) just barely damp with isopropyl alcohol clean the area. Here's a vid showing how to pop them off to clean under them: [https://www.bing.com/videos/search?q=YouTube+MacBook+Pro+keycaps&&view=detail&mid=C0169667CCE4EDD2B71DC0169667CCE4EDD2B71D&rvsmid=A2AC80DC44B891D00C14A2AC80DC44B891D00C14&FORM=VDQVAP|How to remove and clean Macbook Pro keyboard keys].
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If you suspect the battery is swelling then you'll need to replace it ASAP so it doesn't damage things. Here's the IFIXIT guide you'll need to follow: [https://www.ifixit.com/Guide/MacBook+Pro+13-Inch+Retina+Display+Early+2015+Battery+Replacement/45137|MacBook Pro 13" Retina Display Early 2015 Battery Replacement] and here's the battery you'll need: [https://www.ifixit.com/Store/Mac/MacBook-Pro-13-Inch-Retina-Early-2015-Battery/IF123-054-4|MacBook Pro 13" Retina (Early 2015) Battery]
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If you suspect the battery is swelling then you'll need to replace it ASAP so it doesn't damage things. To see if the battery is going I would use this gem of an app: [http://www.coconut-flavour.com/coconutbattery/|CoconutBattery] post a screenshot so we can see what its telling us of the full main screen.
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Here's the IFIXIT guide you'll need to follow: [guide|45137|MacBook Pro 13" Retina Display Early 2015 Battery Replacement] and here's the battery you'll need: [product|IF123-054-4|MacBook Pro 13" Retina (Early 2015) Battery]
One rub here is the battery can only be shipped by ground so depending on were you are you may need to find an alternative source for the battery or travel to somewhere where you can get it.
On the most part there are two issues that cause a keyboard key/s failure a liquid spill (or food crumbs) or the battery is selling up pressing from below.
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If you only have one key failing I would pop the keycap off and see if dusting out any crumbs or with a cotton swab (Q-Tip) just barely damp with isopropyl alcohol clean the area. Here's a vid showing how to pop them off to clean under them: [https://www.bing.com/videos/search?q=YouTube+MacBook+Pro+keycaps&&view=detail&mid=C0169667CCE4EDD2B71DC0169667CCE4EDD2B71D&rvsmid=A2AC80DC44B891D00C14A2AC80DC44B891D00C14&FORM=VDQVAP|How to remove and clean Macbook Pro keyboard keys]
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If you only have one key failing I would pop the keycap off and see if dusting out any crumbs or with a cotton swab (Q-Tip) just barely damp with isopropyl alcohol clean the area. Here's a vid showing how to pop them off to clean under them: [https://www.bing.com/videos/search?q=YouTube+MacBook+Pro+keycaps&&view=detail&mid=C0169667CCE4EDD2B71DC0169667CCE4EDD2B71D&rvsmid=A2AC80DC44B891D00C14A2AC80DC44B891D00C14&FORM=VDQVAP|How to remove and clean Macbook Pro keyboard keys].
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If you suspect the battery is swelling then you'll need to replace it ASAP so it doesn't damage things. Here's the IFIXIT guide you'll need to follow: [https://www.ifixit.com/Guide/MacBook+Pro+13-Inch+Retina+Display+Early+2015+Battery+Replacement/45137|MacBook Pro 13" Retina Display Early 2015 Battery Replacement] and here's the battery you'll need: [https://www.ifixit.com/Store/Mac/MacBook-Pro-13-Inch-Retina-Early-2015-Battery/IF123-054-4|MacBook Pro 13" Retina (Early 2015) Battery]
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One rub here is the battery can only be shipped by ground so depending on were you are you may need to find an alternative source for the battery or travel to somewhere where you can get it.
On the most part there are two issues that cause a keyboard key/s failure a liquid spill (or food crumbs) or the battery is selling up pressing from below.
If you only have one key failing I would pop the keycap off and see if dusting out any crumbs or with a cotton swab (Q-Tip) just barely damp with isopropyl alcohol clean the area. Here's a vid showing how to pop them off to clean under them: [https://www.bing.com/videos/search?q=YouTube+MacBook+Pro+keycaps&&view=detail&mid=C0169667CCE4EDD2B71DC0169667CCE4EDD2B71D&rvsmid=A2AC80DC44B891D00C14A2AC80DC44B891D00C14&FORM=VDQVAP|How to remove and clean Macbook Pro keyboard keys]