NO WI-FI 3G On my E71 after upgrading firmware to ...

I have upgraded my firware version from RM-346 TO RM-493  and WLAN/3G option is missing in phone, I found in wikipedia that wlan is restricted in china. Is there a way that I can downgrade my firmware to the previous one?
MODERATOR'S NOTE: Post edited, name of unauthorised software removed. Please do not mention this software again on the forum.

You reset network connections, try a restore? More than likely if these do not solve the issue it's a hardware issue. I'd visit the apple store.

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