How did you solve the problem?
Just some advice since you are new here: If you want help with a problem, best way to get it is to give as much information about your device as possible (carrier version, what OS version, OS version before you unlocked bootloader if applicable, if the phone is modded with custom ROM, and if so what custom ROM, etc.).
Problem with WiFi not turning on is common, and has been discussed on numerous threads. You probably need to update your firmware (hboot, radio, etc.), since if it's too old, it will not be compatible with current custom ROMs.
Also, please look at the dates of threads/posts before replying to (bumping) them. Digging up old threads is not recommended. This thread is over 2 years (going on 3 years) old. And the user you are asking, hasn't been active on the forum recently. So the chances of that person responded, is somewhat low. Even if he responded, the answer will probably not be completely relevant, as the OS versions, custom ROM versions, and a lot of other things have changed in the last 2 years. Meaning what that person did 2+ years ago, probably won't work for your today.
Although there are others here (such as myself) which will be happy to try to help, as long as you can provide more info as requested.