I have an SOS-A-1001 device that is not working (fails to flash when turned on). I have put in fresh batteries. Any other suggestions? by Danielle Doyle | Mar 6, 2021 If the batteries did not correct the problem, please send it back for a warranty repair to Sirius Signal. We can service the unit! Joe Gallo Sirius Signal 1084 N El Camino Real Suite B-200 Encinitas, CA 92024