Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may receive a signal at least at a first antenna and a second antenna, determine a first strength of the signal received at the first antenna and a second strength of the signal received at the second antenna, and alert a user when a difference between the first and second strengths exceeds a threshold. The difference between the first and second strengths may be caused by an obstruction of the first antenna or the second antenna. For example, the obstruction may be a hand or head of the user of the UE. The UE may also start a timer when the difference exceeds the threshold. The UE may also determine a sensitivity difference between the first and second antennas and adjust the difference between the first and second strengths based on the sensitivity difference.