I have a T-Mobile Samsung Galaxy S5 that I have performed a successful unlock (message said successfully unlocked). I am trying to use the phone on Consumer Cellulars network which requires GSM. When I set the network to GSM only (settings/data usage/mobile networks/GSM Only) then check device status (settings/about device/status) it shows network:unknown, mobile network type:unknown, service state:out of service, and mobile network state:disconnected. The only way I can connect to a network is to select one of the network modes that contain CDMA (LTE/WCDMA/GSM, WCDMA/GSM or WCDMA only). Consumer Cellular is telling me this indicates the phone is still locked on CDMA network and isn't operating on GSM. Unless I can get the phone to connect to the GSM (only) network, picture texting will not work on Consumer Cellulars network either send or receive. With one of the CDMA networks selected I can text (no pictures), make phone calls, receive emails and browse the web. I need the phone to work on GSM only so I can get picture texting working. Help!
Best answer by tmo_marissa