u/KRIS77777777

So I just got a Mark 9 buckle and it works mostly fine expect for when I separate the two halves of the buckle. It’s supposed to make a standby sound and day “Mark 9” but I doesn’t. Same thing when I put it back together and it’s supposed to say “Mark 3”. I tried removing and changing out the batteries but no luck. I’m hoping it’s not faulty.