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Hello, my name is ***** ***** I will do my best to assist you today. Please give me a minute to review your issue and get back to you. Thanks in advance.
Your best bet is to replace the keyboard. They can be bought fairly cheap here on Amazon. All I did was a search for Idea u530 keyboard.
If you want I can get you instructions on how to replace it too. But let me know if you would like to go that route. Thanks
There are no specific instructions on just the keyboard, however there is a service manual and video which shows you how to take it apart, and if you have any technical ability or friends that do they can do this and replace the keyboard fairly easy with using both of the links provided.
The other option here is to take it apart and run just the keyboard under warm to hot running water for about a minute, wait a couple minutes, do it again then use a air compressor on low pressure or canned air or blow dryer to blow all excess water out and and then let it dry for a day or more before putting it back together. Again only do this if your taking it apart, do not try to run the keyboard under hot water while it is still installed in the laptop.
Let me know your thoughts.