It is time to open up the problems of iPhone 4 officially. Well, it has pretty much revealed by customers and various news media. But we have not heard from Apple, yet.

As far as we know, Apple is going to hold an event this Friday in California where their headquarters is located. It is not certain that they will bring the signal problem up or not at the event.

iPhone 4 was considered the best model Apple has released so far. Now it is the trouble maker. The major problems are a bad signal from the antenna (as known as 'death grab') and fragile glass on the back.

About that, a famous publication reported that people should not purchase iPhone 4 and the company has been sued by several costumers. It piques curiousity as to what Apple will say on Friday.