The company has officially acknowledged that defective hardware is to blame, in particular loose contact between some components. issued the following statement to Android Authority: The issue is apparently affecting numerous regional carrier-bred units. It reached a fever pitch when a change.org petition was launched, asking to admit the problem fix it. The impact on you: If you have an G4 you’ve experienced this issue, then you now have a way forward. Your first stop is the carrier if you have a bred model, otherwise reach out directly to support. It’s often best to document the issue as specifically as possible to ensure that the company will attribute the problem to your phone.
