keyboard issues

[Dedatox]

Today on my keyboard (which is a razer deathstalker) my f1-f4 and left shift, caps lock ,and tab buttons are not currently working. 

I have pulled them apart and check to see if there was anything that was preventing them from being usable and saw nothing. I have cleaned them out and so forth to double check myself. Then I have updated the drivers and so forth to see if it is software related as well. Still they do not work. Does anyone have any suggestions on what to do that I might of skipped over? Part of me thinks it is some kind of key lock or something cause I was messing with game addons and something weird came up. All my keys at one point didn't work and I reset the computer to attempt to fix it. Which it did expect the ones I listed. Thanks in advance. 

[Ahaber]

They might have broken which is not surprising as it is razer and a membrane keyboard.

[AverageHardware]

Do you have Razer Synapse installed? I've heard things are weird if you don't have it with a Razer mouse/keyboard. Try it on a different computer if you have one.