Notification LED lights up white
I have an xperia ray running the latest Gingerbread 2.3.4 (build .62). And I just noticed that my notification LED lights up white everytime I press any hardware keys (back, home, menu, volume up/down, and power). It will turn on and then turn off after each button press after about 5 seconds. And this is really a rare problem.
I tried flashing fresh official stock firmwares both latest Gingerbread (build .62) and latest ICS (.587) both used official kernel of each ROM. And it didn't solve the problem. I wonder if I can do some tweaking in system to turn the LED off except for notifications. Because I know it should not illuminate on every button press. And I dont want to install any app that turns off the LED because I tried and it gets killed in memory. So it works but not so effective.
So if an app can do it, there must be a tweak or fix, which I havent been able to find after all these weeks (googling, forums, etc). I'm worrying if this is a hardware issue, but it's impossible, because LED works fine. I hope it's a software issue.
Thank you very much before.