There are a few things you can do to get your keyboard working again. First off, you could try cleaning behind the specific keys by using a compressed air keyboard cleaner. Another thing you could try is to make sure there is no debris lodged behind the keys. If all else fails, you can always replace the keyboard. Please refer to this [https://www.ifixit.com/Guide/Sony+Vaio+PCG-4G1L+Keyboard+Replacement|Keyboard Replacement Guide] for an easy replacement.
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There are a few things you can do to get your keyboard working again. First off, you could try cleaning behind the specific keys by using a compressed air keyboard cleaner. Another thing you could try is to make sure there is no debris lodged behind the keys. If all else fails, you can always replace the keyboard. Please refer to this [https://www.ifixit.com/Guide/Sony+Vaio+PCG-4G1L+Keyboard+Replacement/73877|Keyboard Replacement Guide] for an easy replacement.
Hello Arundhati,
There are a few things you can do to get your keyboard working again. First off, you could try cleaning behind the specific keys by using a compressed air keyboard cleaner. Another thing you could try is to make sure there is no debris lodged behind the keys. If all else fails, you can always replace the keyboard. Please refer to this [https://www.ifixit.com/Guide/Sony+Vaio+PCG-4G1L+Keyboard+Replacement|Keyboard Replacement Guide] for an easy replacement.