Keyboard not working again, pls suggest fix

[charleslongsr]

Hi guys! I am on my 5 TP, I think 5. Well, this one like a few others are strarting to have the problem where the keyboard will stop working. It works when I press REALLLLY hard down on the space bar, but it will stop working shortly eventually. Sometimes sooner than later. Ok, here is my question. The phone is still under warranty, but im honestly just SICK of calling in or going to the store waiting around for a replacement. I really dont feel like waisting time with all the questions when I know what it is. I use to be an electronics tech but now im an IT specialist, so I am tech savy. Any of you experienced guys got any suggestions, or will achieving a solution outside of warranty work simply void the warranty?

Thanks
Charles