This question already has an answer here:
- How secure is Activation Lock on iOS 7? 3 answers
I have an iPhone 5 (iOS 7.0.2) which is locked and I can't unlock it because I've forgotten my Apple ID.
Is there any solution?
It is currently not possible to bypass Activation Lock, since the activation lock data is stored remotely on Apple's servers.
You can attempt to recover your Apple ID by following the instructions at iforgot.apple.com.
You can read more about Activation Lock (and whether it can be bypassed) here: