Test before installation. Do not remove any protective film or tags when testing. Before attempting a repair, be sure to ground is an ESD (electrostatic discharge) strap, this will prevent static electricity from damaging the phone. Screen replacement is a fragile product and pleases test before installation, which means separating mobile phone and touch screen, connected audio cable and new screen replace instead, power on. It is running well, please install it. If not, please contact us by email for the very first time, and please do not force it to be installed on the mobile phone. We will not be responsible once the screen is installed.
