Is It Safe?
It is a matter of big concern whether it is safe for the handset. Responding quickly, we can state that it is not; because you lose the device’s warranty and Apple halts its customer support as well. But, regarding the phone’s physical health, there is no threat at all, if the firmware exploit is run in a proper manner. A flawed effort will certainly crash the handset, however.
Customizing the Apple handset may not be illegal in the U.S. and other countries. But, the thing is that Apple doesn’t anyway tolerate with it. Hence, as you modify the handset Apple naturally ends up its service agreement with the customers. As a result, if your device gets some damage, Apple may either reject to repair it or will charge you for the services required.
But, it doesn’t mean that you will never be able to retain customer services for the phone in future. You can attain this simply through restoring the handset to its original form. Meanwhile, when it comes to the hardware failure what may result is a danger, called ‘bricking.’ It refers to the complete hardware breakdown due to the defective effort to modify the kernel of the phone.
In this case, most devices will turn useless. They wouldn’t further load the firmware and some of its key innards would have failed as well. To get started, visit: Safely Do It Too