Due to contracts, all MetroPCS phones are programmed to work with only MetroPCS network provider. if Trying to use another network SIM card in MetroPCS Samsung Galaxy Exhibit phone usually doesn’t work since it is locked. So how to use the SIM card of your favorite service provider like T-Mobile and other gsm network in your MetroPCS Samsung Galaxy Exhibit phone? We have the solution. Follow these three simple steps to Unlock MetroPCS Samsung Galaxy Exhibit for free to use with any service provider. once you Unlock MetroPCS Samsung Galaxy Exhibit phone, your MetroPCS Samsung Galaxy Exhibit phone remains unlocked for eternity.