BlackBerry® Curve™

[sayyam]

 I cannot turn on wifi, tick box instantly unticks when i come back on main screen, "unable to turn wifi on".

Its Blackberry 8900.

Need forums help on issue

[sdgardne]

Hi and Welcome to the Community!!

I suggest the following steps, in order, even if they seem redundant to what you have already tried (steps 1 and 2 each should result in a message coming to your BB...please wait for that before proceeding to the next step):

1) Register HRT

• KB00510 How to register a BlackBerry smartphone with the wireless network
• Please wait for one "registration" message to arrive to your Messages app

2) Resend Service Books

• KB02830 Send the service books for the BlackBerry Internet Service
• Please wait for "Activation" Messages, one per already configured email account, to arrive in your Messages. If you have no already configured email accounts, please wait 1 hour.

3) Batt Pull Reboot

• Anytime random strange behavior or sluggishness creeps in, the first thing to do is a battery pop reboot. With power ON, remove the back cover and pull out the battery. Wait about a minute then replace the battery and cover. Power up and wait patiently through the long reboot -- ~5 minutes. See if things have returned to good operation. Like all computing devices, BB's suffer from memory leaks and such...with a hard reboot being the best cure.

Hopefully that will get things going again for you!

Otherwise, is your BB perhaps corporate/BES? If so, then the IT Policy could be blocking it -- and you need to talk to your BES admins for help as they control, well, everything. If not, then if the BB was every associated with BES, then it's possible that the IT Policy was not properly cleansed, and it continues to enforce blocking of WiFi usage. You can check via this:

• KB30076 How to check for an IT Policy on a BlackBerry smartphone

If there is an IT Policy, then we can provide you with steps to cleanse it.

If not, then you should contact your mobile service provider for formal support.

Good luck!