While it goes without saying, unlocking your phone will almost certainly void your warranty. Having insurance for your device means you can claim if you choose to successfully repair yourself.
So your screen is cracked. The good news about cracked screens is that you don't have to buy a new phone. You can get them repaired from a mobile screen repair shop.
Image Source: Google
Cracks can expose your device to toxins and dirt from the environment. Over time, this will affect the usability and functionality of the device. Besides, the cracked screen doesn't look good on the screen!
There are many solutions out there for your phone screen repair. But before you can find the best way to solve the problem permanently, put a plastic cover on your phone screen.
Have someone fix it
If you have never taken part in an equipment safety program with your telephone company, you can get insurance so that your phone can be repaired by a contracted technician. With a quick internet search, you will need to find a list of telephone repair shops in your area.
Let the phone manufacturer fix it
If you accidentally damage the screen during the manufacturer's warranty, you will be able to repair your phone in a matter of hours. Note that some manufacturers do not cover accidents.