: If you have the original proof of purchase (receipt), you can start an Activation Lock support request with Apple.
: If you have the original proof of purchase (receipt) and are the rightful owner, you can start an activation lock support request with Apple. iCloud.com custom ipsw icloud unlock top
: iOS devices only install firmware that is digitally "signed" by Apple's servers. If you modify an IPSW file (a "custom" IPSW), the digital signature becomes invalid, and the device will refuse to install it [1, 2]. Server-Side Lock : If you have the original proof of