If you are looking for the to get free, permanent 4G/LTE on T-Mobile or Verizon— stop now. It does not exist.

Protect your data. Protect your device. Unlock your SIM slot the right way, or enjoy a semi-tethered jailbreak experience with limited cellular functionality.

What does exist is a half-broken, temporary signal bypass that requires you to keep the phone jailbroken, never reboot without a computer, and lose visual voicemail.

Disclaimer: This article is for educational purposes only. Modifying iOS firmware violates Apple’s EULA. We do not host or provide links to custom IPSW files. Proceed at your own risk.

This exploit is permanent and cannot be patched by Apple. Because of Checkm8, developers can create custom IPSW files for the iPhone 7 Plus that bypass iCloud locks and, theoretically, carrier locks.

idevicerestore -c "Unlock_Hub_iPhone7Plus.ipsw" Note: You cannot use standard iTunes for custom IPSW files.

Once booted, the custom IPSW will likely install a jailbreak (palera1n) automatically. You will then open an app called "Unlock Hub" or "Carrier Bypass" on the iPhone.

But does it work? Is it safe? And most importantly,