Hi all. First post here. I've had Blinder HP-905 with dual front sensors since 2014 on my Armada. Never had an issue with it; saved my bacon a few times on a highway. I recently bought a new Infiniti QX80 and had the Blinder removed from Armada and re-installed on the Infiniti. Both times the installation was done professionally by the same auto-electrician at a local shop. Very good and knowledgeable guy. I just picked up the vehicle from the shop. The install looks great, all lights are on on the unit, as they should, the voice and long beep are both activated upon vehicle starting in mode 3 (and other two modes as well). The problem: As I got home, I used the LT-15 tester that came with the Blinder in my garage but no detection is occurring in any of the 9(+3) modes tested. Admittedly, I only used this LT-15 once three years ago, but I clearly remember that cycling through the selector and pressing the FIRE button would trigger the jammer to react. What could be wrong? Am I not testing it properly? I could not find anywhere the manual/instructions on how to use the LT-15 tester; but I doubt that's the case (I was pointing the tester towards the sensor from about 2' distance while pressing the FIRE button - blue light was on the tester). Not sure if this is important: After going through a few hassles (driver downloads, getting internet signal in a vehicle for the laptop, etc.), I have updated the firmware through the LiveUpdater tool. So, it should be OK, although the settings in the update window were not that clear or intuitive (I just selected "World", "Default Settings" and "Auto"). I am in Canada (Alberta). This is my tester: Any advice/help would be greatly appreciated.