I have upgraded/downgraded twice from 1.1.4 to 2.0; during this process I lost my wifi feature. I dont have the 'greyed out' button issue, I have the 'wheel spining forever' issue and doesnt recognize any networks. When i click on 'other network' and type-in the network info/pwd, then click 'Join', my phone stays on the page and nothing happens for hours...
Everything else works using the Edge/GPRS network. I am on Tmobile USA, 1st generation iphone, fw 2.0.1
Did i corrupt some files during the upgrade/downgrade

Under 'Settings' i can see Wi-Fi address and IMEI
Could you someone advise? thanks.