After T-Mobile switch and reboot phone is dead

[redzombi2k]

Hello everyone,
Just 3 days ago I switched my 2g iphone over to t-mobile.
It was going fine but I could not get the internet working, so I changed my APN to 'epc.tmobile.com' and rebooted my i-Phone.
Well now it will not poer up at all!
Does not even recat to a charger being plugged in, any ideas?
Thanks,
-Steve

[robertguero]

Does iTunes see it?

[sactownstar]

Do you have a tmobile data plan? And did you use a tethered jailbreak because if you did when you need to reboot or power off your phone it will appear to be "bricked." If that is the case go back to your jailbreak and go through the steps following the first time you put it into DFU mode.