recharged the phone, now no data or phone are working??

The battery fully drained, i recharged the phone but now i am unable to connect my mobile network, nor the phone is working! tried every trick i know, battery pull, security wipe, i even upgraded to 585 then downgraded to 540, upgraded again to 585 , nothing is working! Is there anything else i can do before i brake it to pieces and lose whats left of my hair??
Oh my phone is 9900 :(

Is the red light just blinking or is there just plain nothing.

Just plain nothing

What does the network signal area say? And top center of the screen? And dumb question but you've got mobile network 'on' and HRT>Register Now.

Network signal OFF! i tried to click the ON spot but its kind of greyed and and won't accept the check mark! could't register also , it tells me radio must be on !!!! No such thing called Dumb question! Thanks for your help