403 Error… lets try again
The install looked almost perfect on your video.
You even asked “hopefully it came out”
Your piercer said “Oh, it did”
So we can be pretty certain it is it.
I am just going to step this back just a little bit, don’t be offended if I suggest something you have already tried, I just want to make sure we have covered the bases, sometimes it’s the little things that trip us up…
NFC turned on
Screen Turned on
Phone cover removed
Use DT Diagnostic Card to check NFC
Try another HF access card
Google you phone’s NFC antenna location
This should be your S20
Test your phones NFC operation by using your
If your phone is like mine, you will get a number of weaker pulses, followed by a strong pulse ( shown by the brightness of LED illumination )
Grab you xFD ( Keyring Field Detector ) and find the sweet spot on your phone antenna. This will be the “sweet spot” you will want to replicate with your Spark.
remember, you are trying to get a red by placing your Spark perpendicular to the antenna.
Remember, move you hand / phone slowly, you are trying to catch the duty cycle when it is pulsing, and the high power one is your best bet
Give all that stuff a try ( If you havent already ) and let us all know how it goes.