原帖由： S W ,
@galmoham ,Unfortunately, flashing a ROM won't help network locks because it is a separate chip. You said you tried to unlock MetroPCS via their "Device Unlock" app. Are you getting "No Service" with the Metro PCS SIM, or did you switch to another service? I would say try a known working MetroPCS sim (maybe go to the nearest store) and see if the known working one works. If you switched to another service, make sure the SIM did not get dislodged, and try that service's SIM in another phone. If it works, sounds like the chip that holds the network lock information was not properly unlocked and is in a bad state. Unfortunately if its in a bad state only a service center or someone with service tools can repair this.