Hey guys I've been looking all over for an answer and I'm hoping someone can help me out. I returned my first HTC One and got a different one because of manufacturing issues. I got it today and I am having problems with downloading apps. Certain apps such as Despicable Me and Instagram will download but after it is done it will stop short right before instillation and say the Pack File is Invalid... Do you guys have any fixes? I already tried clearing my cache and data and it didn't work. The only thing I did that i could see being a problem is that I updated my software too 4.1.2 over 4G speed. Please help thank you!