Troubleshoot issues related to low signal strength on your Samsung Galaxy S III

Last Updated: Nov 16, 2013

This article provides troubleshooting tips for the Samsung Galaxy S III Epic 4G LTE. It contains troubleshooting steps and advice to help resolve issues that may occur when you have problems making or receiving calls.

The symptoms you may experience if you are having this problem include:
  • Low signal strength
  • Unable to make or receive calls
  • Frequent dropped calls

The following steps and advice can be used to help identify the underlying cause of the issue and resolve it. After completing each step, test to see if the problem still occurs. If so, proceed to the following step.

  1. Verify the device is connected to the Sprint voice network using Sprint Zone.

    Check that the device is connected to the data network and update the data profile. Open Sprint Zone, then browse to Help > I Need Help. If a Cverage Update warning appears, tap Coverage Update to update the PRL.

  2. Verify that flight mode is turned off.

    Flight mode disables the device's ability to send or receive any type of wireless transmission. If flight mode is turned on, the device will not connect to the Sprint network. If flight mode is turned on, turn it off. To do so, follow these instructions. If this did not resolve the problem, move on to the next step.

  3. Determine if coverage is available at the current location.

    If the device has low signal strength, Sprint may not offer coverage in that particular area. Refer to the nationwide coverage map and determine if coverage is available.

  4. Perform a soft reset.

    This process will re-establish the device's connection to the Sprint network and delete any temporary files that may be causing the problem. To perform a soft reset, turn the device off and remove the battery. After 30 seconds, reinsert the battery and turn the device back on. If a soft reset did not solve the problem, then move on to the next step.

  5. Are other Sprint customers experiencing the same problem, in the same location(s)?

    If yes, or you do not know, please contact Sprint Customer Care for assistance. If no, please visit the nearest Sprint Service Center to have your phone checked by a Sprint Technician. Click here to find a center near you and schedule an appointment.

Note: To optimize device performance, ensure the device is running the most recent device software. To check for software updates, follow these instructions.

If you are still having issues, please contact Sprint Customer Care for assistance.

Average User Rating
(3 ratings)

My rating

Contact us

Find a store

Recently Viewed