This will be my last reply on this topic...this is getting insane.
As I posted in other topic(and here), I solved my problem and my wifi is working again.
So please, don't use the hardware argument because is weak. If the hardware was the problem how come the same device started to work just after a full reinstall of the IOs7, not the On-Air installation of 20Mb?
The only point I was expecting is that someone in apples technical support could tell me how to solve it.
As they haven't told anything at all and I could solve my problem I tried to share with other users.
Maybe this could help then.
So, in short terms: it was a software problem. Just after the update recomended by apple.
I expected that someone from Apple tryed to explain how to solve the issue instead of the "phone is out of warranty cr**".
For next phone, don't worry...I'll keep my focus in companys that could support me my when they realize something they did is wrong. Even if this means..."Guys, if didn't like, came back to the previous version. It is your choice!". This simple act would keep me hopping they care about my happiness with their services.
I was going to buy the new Iphone 5S, then I realize..."Why?" "What if in 1 or 2 years they try the same thing with IOS8?" It would be anbother phone trashed.
So TJBUSMC1973, I realy believe your not helping Apple Image here. I don't have anything against you, but your position is weard, defending the poor company, who is giving a da** on their customers...