[Q] Home Button problem

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http://forum.xda-developers.com – I have ZTE Blade V880 with CM7.1 signed ROM. All of the sudden the home button doesn't work. I tried booting back to recovery and try the test keys and confirmed that the home button is working there so definitely not a hardware issue. Tried booting back but still it wont do anything. Tried reflashing (without wiping) but still a no go, I downloaded KeyEvent Display from google play,all keys responds except the home key. So in short, Home button works on clockworkmod recovery menus but not working when the rom is loaded. Currently using Button Savior as a work around but I want t (HowTos)