A. To improve signal strength, try moving to a different location, preferably near a window or higher ground. Signal can vary based on your surroundings, so testing in different areas can help identify better spots.
B. Check your device's network settings. Go to 'Settings' > 'Network & internet' > 'Mobile network' and ensure that the correct network mode is selected (e.g., 4G/3G). You can also toggle Airplane mode on and off to reset your connection.