I just updated Iphone 3G to 3.1.2. After updating it, i found that the camera app is missing and the wifi is greyed out. I searched online and managed to get back camera by going to restrictions. However, the wifi being greyed out is still a problem. I read multiple forums, tried the soft restart, the reset network, reset all data and connection info, connect to itunes method. None of them worked. I am sure this is not a jailbreak issue as it happened before I jailbroken the Iphone 3G. There is suggestion that the wifi chip could be burnt and thus the wifi option is greyed out (also under settings there is no wifi address).

Like to ask the guru here if this is really a case of hardware failure? Appreciate help from those who hopefully has this issue resolved.