Locked iphone - all the time

[ricardofel]

My iphone (1st gen model) locks all the time. Tried all the unlock apple suggestions but nothing works.....any suggestions????? Apple logo shows and that's it.

 

[detz]

Try doing a restore.

 

[mkrishnan]

If your phone only gets as far as the Apple logo and doesn't fully boot, you need to restore it using DFU mode.

http://www.iclarified.com/entry/index.php?enid=1034