i installed ios 6.1 and when i turned mi iphone on, i couldnt activate wifi, it was color grey and i dont know what to do
Restart the phone.
I tried that but it didnt work and i also erased all and it still doesnt work
Follow the 3R's- if a restart does not solve your problem proceed
User troubleshooting is:
1.restart, ie power off/on,
2. reset http://support.apple.com/kb/HT1430,
3. restore from backup, restore as new device. http://support.apple.com/kb/HT1414
Retrieving data ...