I have heard cases of the “hole punch” being left in after application, it’s meant to retract but somtimes breaks?Hi not sure but when applied sensor it seemed like sensor attached as normal but then I saw in the applicator another bit was left with a small screw sticking out and another needle.
But would not scan.
Abott we're replacing.
This is the second one that failed in succession the other one said replace sensor everytime I scanned but was still giving reading.