Hi everyone, I found your discussion about wifi while searching the internet to solve the weak signal for my iPad2. In fact, I replaced the digitizer and LCD (and I forgot to put the 4 screws as well) LooL. As I remember, I ignored the foam thing that was located just under the home button and now suffered from a bloody weak signal. The wifi is detected when I place the iPad 50 cm to the router. Any distance more than this will loose the connection. So, I commented just to confirm that the foam part is important for wifi. Wish me luck in taking off the new digitizer and put it back again after putting the foam on. Cheers.