If your Galaxy Z Flip did not come pre-installed with a SIM card than you may need to install one yourself (likely from your previous phone). The Galaxy Z Flip uses a nano-SIM card.
To install, unfold the phone's screen and access the SIM tray on the top left with the gold contacts facing down as shown in the image below. Make sure the device is fully charged.
For more, check out the Samsung Galaxy Z Flip Manual.
To install, unfold the phone's screen and access the SIM tray on the top left with the gold contacts facing down as shown in the image below. Make sure the device is fully charged.
For more, check out the Samsung Galaxy Z Flip Manual.
