Hi there,
this is an old issue for my 3G. My problem was started when I updated my iphone with the 4.0.2.
Here some threads :
*Upgrade to 4.0.2 - WIFI is gone.*
http://discussions.apple.com/thread.jspa?threadID=2557236&start=0&tstart=0
*No wifi grey Look At the starting LOG*
http://discussions.apple.com/message.jspa?messageID=12187860#12187860
*"No Wi-Fi" - Grayed Out in Settings - iPhone 3G*
http://discussions.apple.com/message.jspa?messageID=12187857#12187857
The wifi function stopped and the sign was «No wifi», known as grayed out. I sent the issue to bug reporter and the asked me to send the some logs from the iPhone Configuration Utility. Then they asked me the following:
+Can you please attach logs starting from boot? You should do the following, for both 3.1.3 and 4.1 (when the latter is released):+
+1) Fully charge the phone.+
+2) Connect the phone to a computer.+
+3) Start collecting logs.+
+4) Power off the phone, wait 10 seconds, then power it back on.+
+5) When the phone comes back, note whether WiFi is available.+
+6) If WiFi is available, you should try to connect to your home network manually using the settings app.+
+7) If you can connect, you should try to use WiFi for a couple of minutes.+
+8) Attach both sets of logs.+
All those emails come to me some days before every update of the os. My last communication with them is a mysterious email that said:
+«The syslog doesn't contain any messages from SDIO or WiFi. We'd need to capture this unit to get additional info.»+
Does anyone knows what SDIO is and what they mean by capture the unit?
Ten days before, out of the blue, the wifi came back full functional!!! But only for 5 days!!! Now I have still the gray sign «No wifi».
I don’t believe that I have a hardware problem as the representative of apple here said.
I tried all the solutions but without any result.
Any suggestions?