iPhone 3G has no backlight and can't restore

[Zadara]

Hi,
Last time I opened my iPhone 3G to clean the lens of the camera because there were some brown spots on it (Don't ask me how lol). After putting the iPhone back together (It wasn't my first time.) I tried to start it and nothing happened. Then I tried connecting it to the computer and nothing happened. Then I tried putting it in DFU mode and I tried to restore it but when I restored it I got Restore error 21.
Anyone knows what wrong?

Here's a copy of the log:

2011-04-27 19:29:32.538 [5324:155c]: <Recovery Mode Device 027D2AD0>: operation 4 progress -1
2011-04-27 19:29:32.786 [5324:155c]: <Recovery Mode Device 027D2AD0>: operation 42 progress -1
2011-04-27 19:29:32.789 [5324:155c]: AMDeviceIoControl: GetOverlappedResult failed
2011-04-27 19:29:32.789 [5324:155c]: AMDeviceIoControl: pipe stall
2011-04-27 19:29:32.789 [5324:155c]: USBControlTransfer: error 31, usbd status c0000004
2011-04-27 19:29:32.789 [5324:155c]: command device request for 'setpicture 0' failed: 2008
2011-04-27 19:29:32.789 [5324:155c]: AMRAuthInstallDeletePersonalizedBundle
2011-04-27 19:29:32.863 [5324:155c]: removed personalized bundle
2011-04-27 19:29:32.863 [5324:155c]: <Recovery Mode Device 027D2AD0>: Recovery mode failed (result = 21)
2011-04-27 19:29:33.126 [5324:1790]: iTunes: Restore error 21

Thanks

 

[Zadara]

Anyone?
Please?