The mobile phone is Lenovo S880, and the signature verification failed when swiping the mobile phone. Ask for advice? Where does signature verification change in recovery?
Dear Lenovo users, it is not recommended that you write your own mobile phone operating system. Using an unofficial operating system may cause incompatibility of mobile devices and affect the normal use of your mobile phone. At the same time, you will not be able to provide warranty service after self-brushing, which will bring inconvenience to your use and maintenance.