What to do if the 3G4010 DSC Cell Phone yellow and red lights flash constantly?
- GGeorge PhelpsAug 1, 2025
If the 3G4010 yellow and red lights are constantly flashing, make sure there's a strong signal (at least one green light on). Also, confirm that the SIM card is activated. It might take up to 10 minutes for the network to program the unit, so wait at least 15 minutes. If problems continue, try turning the power off and on, then check the SIM card and signal again.