CallLock is a recently updated jailbreak tweak which promises to solve the proximity sensor problem once and for all.
This simple yet clever jailbreak tweak locks your iPhone’s screen when you make a call. This means your face can’t interact with the iPhone during a call, even if your proximity sensor doesn’t do its job. The “iPhone 4 Proximity Sensor Bug” gained a lot of attention, back when the handset was released.
And, even though Apple reportedly fixed this bug in iOS 4.1, many users still encounter issues with the proximity sensor.
Thankfully, CallLock can solve the problem for you once and for all. It’s currently available in the Cydia Store for $0.99, so check it out. And, thanks to iSpazio (Google Translate) for spotting this!