You misunderstood, it should be disconnecting the phone, not cracking the software. Software with high authority will be restricted by the security of mobile phone when it is installed, so it is necessary to sign the software or directly crack the mobile phone. Both methods require certificates. Application method: Enter "*#06#" in standby mode, a string of codes will appear, and then paste these numbers into the "certificate area of mobile phone house" for certificate application. With the certificate, you can sign the software or crack the mobile phone. This process is very complicated. Please study patiently and wish you success!