May 08, · Back in , MetroPCS changed the way certain Android smartphones could be unlocked from their network. By pre-installing a Device Unlock App on the phone, MetroPCS customers can now request and apply a mobile device unlock directly from the device.. This is the only way to unlock a Samsung, LG, Alcatel, HTC, Huawei, Kyocera, Motorola, Sony Brand: EE. Jan 02, · Metro Pcs Sim Unlock Code Free Download; Official Sim Network Unlock Pin Code Generator for all cell phone like LG, Alcatel, Samsung, Sony, Motorola, Nokia Huawei ZTE devices for free Carrier Sim Unlock codes. Currently, everyone can agree that the most complicated problem which the smartphone users have is the network lock. Metro Pcs Sim.