iPhone stuck in "respring" and I can't enter DFU mode to restart it (HELP)

[Graisonf]

Okay, So I have an iPhone 3GS and it's running on 4.0 and I currently can't check the baseband because my phone is on that respring page with the white "looping circle of doom". After downloading updates for some cydia apps it needed to respring, and that is when it got stuck. My computer/itunes recognizes my device. I was thinking of just going ahead and updating my phone to a newer firmware but I cannot get it into DFU mode because of lack of a lock button. I can see the button that I have to click inside the phone, but it's useless because it doesn't even work. I don't care about losing anything I had saved on my phone, I just want to update it and have it working. Also I have tmobile so I will need to unlock it after I jailbreak it. Also I have a mac. And I want to update to 4.3.3 (since that is still unlockable), I already have a file ready with pwnagetools. iPhone2,1_4.3.3_8J2_Custom_Restore.ipsw

Thanks

[iYeow]

You have a broken lock Button ? what is lock button ?

[Graisonf]

You have a broken lock Button ? what is lock button ?

Sorry I meant to say the power or sleep button.

[iYeow]

Without those working buttons, very difficult to get into dfu mode. I don't know how to get to dfu mode without working buttons . Maybe someone else can assist you

[Graisonf]

Without those working buttons, very difficult to get into dfu mode. I don't know how to get to dfu mode without working buttons . Maybe someone else can assist you

Thank you, and I hope somebody knows how. It's very sad to not have a phone. haha.