There are many rumours that wi-fi in Micromaxq7 is not working at all. So for all those who are unable to connect the device to wi-fi, Below is the solution I hope so---------
well here are the settings how to connect q7 to available Wi-fi device.
1)Menu->connectivity->wap->settings->profiles->sim1->wlan->options->Activate.
2)Menu->connectivity->wap->settings->profiles->sim2->wlan->options->Activate.
3)Menu->connectivity->wi-fi->search for networks->options->connect.
If it is asks for any password while connecting, then the wlan router is password enabled so ask for his owner regarding the password.
Now you can open opera,nimbuzz & facebook directly and start browsing, Happy browsing have a nice day!
Its better to update to newer version of opera for unnecessary Bugs.
Any queries regarding micromax q7 u can comment below in comment section or mail ur queries @ kiranpani@gmail.com. I'll try to answere at my best.