A. Check your device settings to ensure that mobile data is enabled. Go to 'Settings' > 'Cellular' and make sure that 'Cellular Data' is turned on. You can also try toggling Airplane Mode on and off to reset your connection.

B. If the connection quality remains poor, try moving to a different location. Sometimes, signal strength can vary significantly based on your surroundings. If you are indoors, moving closer to a window may help.