Is it possible to bypass the icloud activation if genuinely lost PW?
https://iforgot.apple.com/password/verif... if the icloud account is actually yours :-)
if you can't recover, then you will have to contact apple and give them the reciept.
I won't discuss the illegal bypasses in depth here, but you have to replace the baseband and emmc chip
Special case for the iphone 4 since its bootrom is limerain exploitable